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Pathways Recommended:	Cell Cycle/DNA Damage

Results for "

DNA topoisomerase Inhibitor

" in MedChemExpress (MCE) Product Catalog:

By Targets:	DNA-PK (2) DNA/RNA Synthesis (40) Topoisomerase (214) ADC Antibody (1) ADC Cytotoxin (41) Akt (2) AMPK (3) Antibiotic (68) Antibody-Drug Conjugates (ADCs) (3) AP-1 (2) Apoptosis (59) ATM/ATR (1) Autophagy (34) Bacterial (81) c-Myc (3) Caspase (4) Cathepsin (1) CD22 (1) Cuproptosis (1) Drug Metabolite (2) Drug-Linker Conjugates for ADC (22) Endogenous Metabolite (7) ERK (2) FAK (2) Fungal (8) HBV (3) HIV (3) Influenza Virus (2) Interleukin Related (2) Isotope-Labeled Compounds (7) JNK (2) MDM-2/p53 (1) MicroRNA (7) Microtubule/Tubulin (3) Mitochondrial Metabolism (8) Mitophagy (7) Necroptosis (2) NF-κB (5) NO Synthase (1) Orthopoxvirus (6) p38 MAPK (2) Parasite (12) Phosphatase (3) PI3K (2) Reactive Oxygen Species (16) Reverse Transcriptase (3) SARS-CoV (3) Sirtuin (3) STAT (2) TROP2 (1) Virus Protease (1)
By Research Areas:	Cancer (214) Cardiovascular Disease (7) Infection (86) Inflammation/Immunology (11) Metabolic Disease (3) Neurological Disease (9)
Click Chemistry:	DBCO (2)
Oligonucleotides:	Cholesterol (1)

260

Inhibitors & Agonists

Fluorescent Dye

Biochemical Assay Reagents

Inhibitory Antibodies

Natural
Products

Isotope-Labeled Compounds

Click Chemistry

Oligonucleotides

Targets Recommended: Topoisomerase DNA-PK DNA Methyltransferase DNA Stain DNA Alkylator/Crosslinker DNA/RNA Synthesis

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-N3488

Isodiospyrin	Topoisomerase Bacterial Fungal	Infection Cancer
Isodiospyrin, a natural dimeric naphthoquinone, is a human DNA topoisomerase I (Topoisomerase) inhibitor. Isodiospyrin can prevent both DNA relaxation and kinase activities of human topoisomerase I. Isodiospyrin shows anticancer, antibacterial and antifungal activities .

HY-16562

Irinotecan 40+ Cited Publications (+)-Irinotecan; CPT-11; VAL-413(free base)	Topoisomerase Autophagy	Cancer
Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex .

HY-146227

DNA topoisomerase II inhibitor 1	Topoisomerase Apoptosis	Cancer
DNA topoisomerase II inhibitor 1 (compound 8ed) is a potent DNA topoisomerase II inhibitor. DNA topoisomerase II inhibitor 1 shows anti-proliferative activity. DNA topoisomerase II inhibitor 1 induces apoptosis and cell cycle arrest at sub G1 phase .

HY-123363

Tafluposide F-11782	Topoisomerase	Cancer
Tafluposide (F-11782) is a **DNA topoisomerase** inhibitor. Tafluposide has antitumor activity .

HY-162587

Fagopyrine	Topoisomerase	Cancer
Fagopyrine is a DNA topoisomerase I (Topo I) inhibitor. Fagopyrine is a photosensitizer that can be used in the study of tumors .

HY-156723

9-Chloromethyl-10-hydroxy-11-F-Camptothecin	Topoisomerase	Cancer
9-Chloromethyl-10-hydroxy-11-F-Camptothecin is a novel camptothecin derivatives. 9-Chloromethyl-10-hydroxy-11-F-Camptothecin is a DNA topoisomerase I (Topo I) inhibitor, can be used in anticancer research .

HY-143484

844-TFM	Bacterial	Infection
844-TFM is a NBTI (novel bacterial topoisomerase inhibitor) DNA gyrase inhibitor, with an IC₅₀ of 1.5 μM. 844-TFM exhibits bactericidal properties against M. abscessus .

HY-143483

NBTIs-IN-5	Bacterial	Infection
NBTIs-IN-5 (Compound 5r) is a NBTI (Novel Bacterial Topoisomerase Inhibitor) DNA gyrase inhibitor with an IC₅₀ of 1.5 μM against Mycobacterium abscessus (Mabs) DNA gyrase. NBTIs-IN-5 inhibits Mabs bamboo bacterial growth with an MIC₉₀ of 0.4 μM .

HY-149410

MSN8C	Others	Cancer
MSN8C, an analog of mansonone E, is a novel catalytic inhibitor of human DNA topoisomerase II. MSN8C induces cancer cell apoptosis. MSN8C shows significant anti-tumor cell proliferation activity in vitro .

HY-122594

BNS-22	Topoisomerase	Cancer
BNS-22 is a DNA topoisomerase II (TOP2) catalytic inhibitor with the IC₅₀ values of 2.8 μM and 0.42 μM for human TOP2α and TOP2β, respectively. BNS-22 induces abnormal division and has anti-proliferative activity .

HY-16742B

Gepotidacin mesylate hydrate 5+ Cited Publications	Antibiotic Bacterial Topoisomerase	Infection
Gepotidacin mesylate hydrate is an orally active triazaacenaphthylene antibiotic and bacterial type II topoisomerase inhibitor. Gepotidacin mesylate hydrate inhibits bacterial DNA replication by blocking topoisomerase enzymes. Gepotidacin mesylate hydrate selectively inhibits topoisomerase IV and the B subunit of DNA gyrase .

HY-119892

Batracylin NSC 320846; BAY-H 2049	Topoisomerase	Cancer
Batracylin (NSC320846) is a potent DNA Topoisomerases I and DNA Topoisomerases II inhibitor. Batracylin shows cytotoxicity and antiproliferative activity. Batracylin induces DNA breaks .

HY-124552

Epolactaene	DNA/RNA Synthesis Topoisomerase	Others
Epolactaene is a potent Topoisomerase II and DNA Polymerase inhibitor with IC₅₀ values of 10, 25, 94 µM for Topoisomerase II, DNA Polymerase α, DNA Polymerase β, respectively .

HY-106307

Retelliptine BD84	Topoisomerase	Cancer
Retelliptine (BD84), a derivative of ellipticine, is an inhibitor of Topoisomerase II with anticancer activity. Retelliptine can bind to DNA and inhibit Topoisomerase II during DNA replication .

HY-143281

Topoisomerase II inhibitor 5	Topoisomerase	Cancer
Topoisomerase II inhibitor 5 (Compound E24) is a DNA topoisomerase II inhibitor with anticancer activities .

HY-143265

Topoisomerase I inhibitor 2	Topoisomerase Apoptosis Caspase	Cancer
Topoisomerase I inhibitor 2 (ZML-8) is a highly selective inhibitor of DNA topoisomerase I (Top1). Topoisomerase I inhibitor 2 inhibits Top1 activity and results DNA damage. Topoisomerase I inhibitor 2 blocks G2/M phase and induces apoptosis, exhibits anti-tumor effect .

HY-147877

Topoisomerase II inhibitor 12	Topoisomerase	Cancer
Topoisomerase II inhibitor 12 (Compound 8c) is a topoisomerase II (topo II) inhibitor, working as a DNA non-intercalator. Topoisomerase II inhibitor 12 shows antineoplastic activity .

HY-125930

T-2513	Topoisomerase DNA/RNA Synthesis	Cancer
T-2513 is a selective topoisomerase I inhibitor. T-2513 binds covalently to and stabilizes the topoisomerase I-DNA complex and inhibits DNA replication and RNA synthesis, ultimately leading to cell death .

HY-125930A

T-2513 hydrochloride	Topoisomerase DNA/RNA Synthesis	Cancer
T-2513 hydrochloride is a selective topoisomerase I inhibitor. T-2513 hydrochloride binds covalently to and stabilizes the topoisomerase I-DNA complex and inhibits DNA replication and RNA synthesis, ultimately leading to cell death .

HY-16562S1

Irinotecan-d10 hydrochloride	Isotope-Labeled Compounds Topoisomerase Autophagy	Cancer
Irinotecan-d₁₀ (hydrochloride) is the deuterium labeled Irinotecan. Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex[1][2].

HY-16562S

Irinotecan-d10 (+)-Irinotecan-d₁₀; CPT-11-d₁₀; VAL-413-d₁₀	Topoisomerase Autophagy	Cancer
Irinotecan-d₁₀ is a deuterium labeled Irinotecan ((+)-Irinotecan). Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex[1].

HY-16562R

Irinotecan (Standard)	Topoisomerase Autophagy	Cancer
Irinotecan (Standard) is the analytical standard of Irinotecan. This product is intended for research and analytical applications. Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex .

HY-162381

Topoisomerase II inhibitor 19	Topoisomerase	Cancer
Topoisomerase II inhibitor 19 (compound 5h) is a DNA intercalator and topoisomerase II inhibitor (IC₅₀ value of 0.34 μM). Topoisomerase II inhibitor 19 would induce detectable potent damage in ctDNA .

HY-152187

Topoisomerase IIα-IN-5	Topoisomerase Apoptosis	Others
Topoisomerase IIα-IN-5 is a topoisomerase II (topo II) α catalytic inhibitor. Topoisomerase IIα-IN-5 intercalates into DNA and binds to the DNA minor groove. Topoisomerase IIα-IN-5 exhibits better efficacy and less genotoxicity than Etoposide (HY-13629) .

HY-10982

Amonafide 3 Publications Verification AS1413	Topoisomerase	Cancer
Amonafide is a topoisomerase II inhibitor and DNA intercalator that induces apoptotic signaling by blocking the binding of Topo II to DNA.

HY-144774

Topoisomerase I inhibitor 5	Topoisomerase DNA/RNA Synthesis Apoptosis	Cancer
Topoisomerase I inhibitor 5 is an effective *topoisomerase* inhibitor with IC₅₀ value of. Topoisomerase I inhibitor 5 can interfere with DNA and significantly inhibit the activity of Topoisomerase I. Topoisomerase I inhibitor 5 can arrest cell cycle at the G1 phase and induce MCF-7 cells apoptosis. Topoisomerase I inhibitor 5 has potency in reversing P-gp-mediated resistance to Adriamycin .

HY-143266

Topoisomerase I inhibitor 3	Topoisomerase Apoptosis	Cancer
Topoisomerase I inhibitor 3 (Compound ZML-14) is a topoisomerase I inhibitor and can interact with topoisomerase I-DNA complex. Topoisomerase I inhibitor 3 induces HepG2 cell apoptosis and arrests cell cycle at G2/M phase .

HY-15552

Podofilox 3 Publications Verification Podophyllotoxin	Microtubule/Tubulin	Cancer
Podofilox (Podophyllotoxin) is a potent inhibitor of microtubule assembly and DNA topoisomerase II.

HY-N10115

Huanglongmycin N	Topoisomerase	Cancer
Huanglongmycin N is a DNA topoisomerase I inhibitor (EC₅₀ = 14 μM).

HY-146437

Topoisomerase I inhibitor 6	Topoisomerase	Cancer
Topoisomerase I inhibitor 6 (Compound 3) is a potent inhibitor of Topoisomerase I. Topoisomerase I inhibitor 6 is able to trap DNA-Top1 cleavage complex and found to be less cytotoxic in non-cancerous cell line. Topoisomerase I inhibitor 6 has the potential for the research of cancer diseases .

HY-146316

Topoisomerase II inhibitor 6	Topoisomerase	Cancer
Topoisomerase II inhibitor 6 (Compound 5), a tryptanthrin derivative, is a potent and selective inhibitor of topoisomerase II. Topoisomerase II inhibitor 6 exhibits antiproliferative activity on different tumor cell lines. Topoisomerase II inhibitor 6 blocks the cell cycle of CCRF-CEM in the G2 phase and induces DNA DSB. Topoisomerase II inhibitor 6 has the potential for the research of cancer diseases .

HY-19825

Rebeccamycin	Topoisomerase ADC Cytotoxin Antibiotic	Cancer
Rebeccamycin, an antitumor antibiotic, inhibits DNA topoisomerase I. Rebeccamycin appears to exert its primary antineoplastic effect by poisoning topoisomerase I and has negligible effect on protein kinase C and topoisomerase II .

HY-120185

Saintopin UCT-1003	Topoisomerase	Infection Cancer
Saintopin is an antitumor antibiotic. Saintopin is also an inhibitor of DNA topoisomerases I and II. Saintopin induces DNA cleavage .

HY-19024

Merbarone NSC 336628	Topoisomerase	Cancer
Merbarone (NSC 336628) is an orally active inhibitor of topoisomerase II. Merbarone acts primarily by blocking topoisomerase II-mediated DNA cleavage without stabilizing topo II-DNA covalent complexes. Merbarone is an anticancer agent .

HY-161385

Topoisomerase I inhibitor 16	Topoisomerase	Cancer
Topoisomerase I inhibitor 21 (Compound 3e) is an inhibitor for Topoisomerase I through stabilization of enzyme-DNA complex. Topoisomerase I inhibitor 21 exhibits antiproliferative activity in 39 human cancer cells (JFCR39) with mean GI₅₀ 39 nM .

HY-W031307

Topoisomerase IIα-IN-8	Topoisomerase	Cancer
Topoisomerase IIα-IN-8 (compound 15) is a weak *human DNA* topoisomerase IIa (htIIa)** inhibitor, with an IC₅₀ of 462 ± 38.0 μM .

HY-155693

Topoisomerase II inhibitor 16	Topoisomerase Parasite	Infection
Topoisomerase II inhibitor 16 (compound CT3) is a selective, orally active, brain-penetrant and irreversible *trypanosomal topoisomerase* II** inhibitor by stabilizing double-stranded DNA:enzyme cleavage complexes. Topoisomerase II inhibitor 16 has the potential for Chagas disease research .

HY-146021

Topoisomerase IIα-IN-2	Topoisomerase	Cancer
Topoisomerase IIα-IN-2 (compound 5) is a potent DNA-binding ligands and topoisomerase IIα inhibitor. Topoisomerase IIα-IN-2 exhibits high antiproliferative activity against human cancer cell lines. Topoisomerase IIα-IN-2 significantly induces DNA damage and arrests cancer cells at G2/M phase .

HY-16518

Voreloxin Hydrochloride 2 Publications Verification SNS-595 Hydrochloride; Vosaroxin Hydrochloride; AG 7352 Hydrochloride	Topoisomerase Apoptosis	Cancer
Voreloxin Hydrochloride is a first-in-class topoisomerase II inhibitor that intercalates DNA and induces site-selective DNA DSB, G2 arrest, and apoptosis.

HY-15753

Ellipticine 3 Publications Verification NSC 71795	Topoisomerase	Cancer
Ellipticine (NSC 71795) is a potent antineoplastic agent; inhibits DNA topoisomerase II activities.

HY-15753A

Ellipticine hydrochloride 3 Publications Verification NSC 71795 hydrochloride	Topoisomerase	Cancer
Ellipticine (NSC 71795) hydrochloride is a potent antineoplastic agent; inhibits DNA topoisomerase II activities.

HY-B0067

Amrubicin SM-5887	Topoisomerase Bacterial	Cancer
Amrubicin (SM-5887) is a DNA topoisomerase II inhibitor, used for the research of cancer.

HY-152473

Topoisomerase IIα-IN-6	Topoisomerase	Cancer
Topoisomerase IIα-IN-6 (Compound 47d) is an inhibitor of DNA topoisomerase IIα/β. Topoisomerase IIα-IN-6 inhibits human topoisomerase IIα and human topoisomerase IIβ with IC₅₀ values of 0.67 µM and 0.55 µM, respectively. Topoisomerase IIα-IN-6 has stable metabolism .

HY-100777

DACA	Topoisomerase	Cancer
DACA inhibits two essential nuclear enzymes in vitro, DNA topoisomerase I and DNA topoisomerase (topo) II. DACA stabilises topo I, topo II alpha, and topo II beta cleavable complexes in human leukaemia CCRF-CEM cells .

HY-150044

*Type II topoisomerase* inhibitor 1**	DNA/RNA Synthesis Topoisomerase Bacterial	Infection
Type II topoisomerase inhibitor 1 is a potent and selective E. coli DNA gyrase inhibitor (IC₅₀: 1.7 nM), and forms hydrogen bonds with Asp73 residue. Type II topoisomerase inhibitor 1 inhibits topoisomerase IV activity (IC₅₀: 0.98 μM). Type II topoisomerase inhibitor 1 can be used in the research of antibacterial area .

HY-162959

BWC0977	Bacterial Topoisomerase DNA/RNA Synthesis	Infection
BWC0977 is a potent bacterial topoisomerase inhibitor that inhibits bacterial DNA replication via inhibition of DNA gyrase and topoisomerase IV. BWC0977 exhibits a minimum inhibitory concentration (MIC90) of 0.03-2 µg/mL against MDR (Multi-Drug Resistant) Gram-negative bacteria .

HY-115990

Topoisomerase IV inhibitor 1	Topoisomerase Bacterial	Infection
Topoisomerase IV inhibitor 2 (compound 7d) is a potent DNA topoisomerase IV (TOPO IV) inhibitor with IC₅₀s of 0.23 μM and 0.43 μM for TOPO IV and DNA gyrase, respectively. Topoisomerase IV inhibitor 2 has anti-bacterial activity, with MICs of 0.972 μM and 0.608 μM in Staphylococcus aureus Newman and Escherichia coli ATCC8739, respectively .

HY-115991

Topoisomerase IV inhibitor 2	Topoisomerase Bacterial	Infection
Topoisomerase IV inhibitor 2 (compound 5d) is a potent DNA topoisomerase IV (TOPO IV) inhibitor with IC₅₀s of 0.35 μM and 0.55 μM for TOPO IV and DNA gyrase, respectively. Topoisomerase IV inhibitor 2 has anti-bacterial activity, with MICs of 1.985 μM and 0.744 μM in Staphylococcus aureus Newman and Escherichia coli ATCC8739, respectively .

HY-13758A

TAS-103 dihydrochloride 1 Publications Verification BMS-247615 dihydrochloride	Topoisomerase	Cancer
TAS-103 dihydrochloride is a dual inhibitor of DNA topoisomerase I/II, used for cancer research.

HY-13758

TAS-103 BMS-247615	Topoisomerase	Cancer
TAS-103 is a dual inhibitor of DNA topoisomerase I/II, used for cancer research.

Cat. No.	Product Name	Type

HY-13631AG

Exatecan (mesylate) (GMP) DX8951f (GMP)	Fluorescent Dye
Exatecan mesylate (DX8951f ) GMP is a GMP-class Exatecan (HY-13631). Exatecan is a DNA topoisomerase I inhibitor, with an IC₅₀ of 2.2 μM (0.975 μg/mL), and can be used in cancer research .

HY-16700G

PNU-159682 (GMP)	Fluorescent Dye
PNU-159682 GMP is a GMP grade PNU-159682 (HY-16700). PNU-159682, a metabolite of the anthracycline Nemorubicin, is a highly potent DNA topoisomerase II inhibitor with excellent cytotoxicity. PNU-159682 acts as a more potent and tolerated ADC cytotoxin than Doxorubicin for ADC synthesis. PNU-159682 can be used in EDV-nanocell technology to overcome agent resistance.

Cat. No.	Product Name	Type

HY-13631AG

Exatecan (mesylate) (GMP) DX8951f (GMP)	Biochemical Assay Reagents
Exatecan mesylate (DX8951f ) GMP is a GMP-class Exatecan (HY-13631). Exatecan is a DNA topoisomerase I inhibitor, with an IC₅₀ of 2.2 μM (0.975 μg/mL), and can be used in cancer research .

HY-16700G

PNU-159682 (GMP)	Biochemical Assay Reagents
PNU-159682 GMP is a GMP grade PNU-159682 (HY-16700). PNU-159682, a metabolite of the anthracycline Nemorubicin, is a highly potent DNA topoisomerase II inhibitor with excellent cytotoxicity. PNU-159682 acts as a more potent and tolerated ADC cytotoxin than Doxorubicin for ADC synthesis. PNU-159682 can be used in EDV-nanocell technology to overcome agent resistance.

Cat. No.	Product Name	Target	Research Area

HY-P99843

Datopotamab	TROP2 ADC Antibody	Cancer
Datopotamab (CDP7657) is a humanized anti trophoblast cell surface antigen 2 (TROP2) antibody. Datopotamab can generate antibody drug conjugates (ADC) (HY-141598) with DNA topoisomerase I inhibitor Deruxtecan (HY-13631E). Datopotamab can be used in the study of triple negative breast cancer and non-small cell lung cancer .

HY-164152

ADC Control Human IgG1-Deruxtecan (DAR 4)	Antibody-Drug Conjugates (ADCs) Topoisomerase	Cancer
ADC Control Human IgG1-Deruxtecan (DAR 4) is a humanized monoclonal antibody that is an isotype control of ADC human IgG1-Deruxtecan and can inhibit DNA topoisomerase I. The antibody portion is Human IgG1 kappa, Isotype Control (HY-P99001), and the drug-linker conjugate for ADC is Deruxtecan (HY-13631E) .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-N3488

Isodiospyrin	Quinones Structural Classification other families Diospyros virginiana L. Source classification Benzene Quinones Plants	Topoisomerase Bacterial Fungal
Isodiospyrin, a natural dimeric naphthoquinone, is a human DNA topoisomerase I (Topoisomerase) inhibitor. Isodiospyrin can prevent both DNA relaxation and kinase activities of human topoisomerase I. Isodiospyrin shows anticancer, antibacterial and antifungal activities .

HY-15552

Podofilox 3 Publications Verification Podophyllotoxin	Structural Classification Classification of Application Fields Source classification Lignans Dysosma versipellis (Hance) M. Cheng ex Ying Phenylpropanoids Plants Berberidaceae Disease Research Fields Cancer	Microtubule/Tubulin
Podofilox (Podophyllotoxin) is a potent inhibitor of microtubule assembly and DNA topoisomerase II.

HY-15753

Ellipticine 3 Publications Verification NSC 71795	Apocynaceae Alkaloids Structural Classification Classification of Application Fields Source classification Plants Amsonia elliptica (Thunberg ex Murray) Roemer & Schultes Disease Research Fields Indole Alkaloids Cancer	Topoisomerase
Ellipticine (NSC 71795) is a potent antineoplastic agent; inhibits DNA topoisomerase II activities.

HY-15753A

Ellipticine hydrochloride 3 Publications Verification NSC 71795 hydrochloride	Apocynaceae Alkaloids Structural Classification Classification of Application Fields Source classification Plants Amsonia elliptica (Thunberg ex Murray) Roemer & Schultes Disease Research Fields Indole Alkaloids Cancer	Topoisomerase
Ellipticine (NSC 71795) hydrochloride is a potent antineoplastic agent; inhibits DNA topoisomerase II activities.

HY-N0872

Isosteviol (-)-Isosteviol; iso-Steviol	Structural Classification other families Classification of Application Fields Terpenoids Source classification Diterpenoids Plants Disease Research Fields Cancer	Interleukin Related Reactive Oxygen Species Topoisomerase
Isosteviol ((-)-Isosteviol) is a derivative of Stevioside through acid catalyzed hydrolysis of Stevioside. Isosteviol inhibits DNA polymerase and DNA topoisomerase and has antibacterial, anticancer and anti-tuberculosis effects .

HY-18258

Berberine chloride 40+ Cited Publications Natural Yellow 18 chloride	Alkaloids Structural Classification Phellodendron amurense Rupr. Classification of Application Fields Source classification Rutaceae Plants Isoquinoline Alkaloids Disease Research Fields Biological Pesticide Research Cancer Agricultural Research	Topoisomerase Autophagy Bacterial Reactive Oxygen Species Antibiotic Endogenous Metabolite Parasite
Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits **DNA topoisomerase**. Antineoplastic properties .

HY-124552

Epolactaene	Structural Classification Natural Products Microorganisms Source classification	DNA/RNA Synthesis Topoisomerase
Epolactaene is a potent Topoisomerase II and DNA Polymerase inhibitor with IC₅₀ values of 10, 25, 94 µM for Topoisomerase II, DNA Polymerase α, DNA Polymerase β, respectively .

HY-N10115

Huanglongmycin N	Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Phenols Polyphenols Disease Research Fields Cancer	Topoisomerase
Huanglongmycin N is a DNA topoisomerase I inhibitor (EC₅₀ = 14 μM).

HY-19825

Rebeccamycin	Structural Classification Microorganisms Classification of Application Fields Antibiotics Source classification Disease Research Anticancer Disease Research Fields Other Antibiotics Cancer	Topoisomerase ADC Cytotoxin Antibiotic
Rebeccamycin, an antitumor antibiotic, inhibits DNA topoisomerase I. Rebeccamycin appears to exert its primary antineoplastic effect by poisoning topoisomerase I and has negligible effect on protein kinase C and topoisomerase II .

HY-121309

Doxorubicinone Adriamycin aglycone; Adriamycinone	Quinones Structural Classification Classification of Application Fields Anthraquinones Source classification Endogenous metabolite Disease Research Fields Cancer	Endogenous Metabolite
Doxorubicinone is a metabolite of an anti-cancer chemotherapy agent Doxorubicin . Doxorubicin is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC₅₀s of 0.8 μM and 2.67 μM, respectively.

HY-N10367

Corydamine	Alkaloids Corydalis bulleyana Diels Classification of Application Fields Source classification Plants Isoquinoline Alkaloids Disease Research Fields Papaveraceae Cancer	Topoisomerase
Corydamine, 3-arylisoquinoline alkaloid, is a potent DNA topoisomerase I/II inhibitor. Corydamine has anti-cancer activity .

HY-15552R

Podofilox (Standard)	Structural Classification Source classification Lignans Dysosma versipellis (Hance) M. Cheng ex Ying Phenylpropanoids Plants Berberidaceae	Microtubule/Tubulin
Podofilox (Standard) is the analytical standard of Podofilox. This product is intended for research and analytical applications. Podofilox (Podophyllotoxin) is a potent inhibitor of microtubule assembly and DNA topoisomerase II.

HY-17577

Berberine chloride hydrate 40+ Cited Publications Natural Yellow 18 chloride hydrate	Alkaloids Structural Classification Classification of Application Fields Source classification Ranunculaceae Coptis chinensis Franch. Plants Isoquinoline Alkaloids Disease Research Fields Cancer	Topoisomerase Autophagy Bacterial Reactive Oxygen Species Antibiotic Endogenous Metabolite Parasite
Berberine chloride hydrate (Natural Yellow 18 chloride hydrate) is an alkaloid that acts as an antibiotic. Berberine chloride hydrate induces reactive oxygen species (ROS) generation and inhibits **DNA topoisomerase**. Antineoplastic properties .

HY-13744

Rubitecan RFS 2000; 9-Nitrocamptothecin	Alkaloids Structural Classification Classification of Application Fields Source classification Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields Cancer	Topoisomerase
Rubitecan (RFS 2000), a Camptothecin derivative, is an orally active topoisomerase I inhibitor with broad antitumor activity, and induces protein-linked DNA single-strand breaks, thereby blocking DNA and RNA synthesis in dividing cells .

HY-N8745

α-Peltatin	Structural Classification Podophyllum peltatum L. Source classification Lignans Phenylpropanoids Plants Berberidaceae	Fungal
α-Peltatin is an aryl lignan. α-Peltatin has anticancer and antifungal activity. α-Peltatin inhibits DNA topoisomerase and tubulin polymerization .

HY-15142A

Doxorubicin Hydroxydaunorubicin	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Phenols Polyphenols Disease Research Fields	ADC Cytotoxin Antibiotic Bacterial Topoisomerase AMPK HIV Autophagy Mitophagy Apoptosis HBV
Doxorubicin (Hydroxydaunorubicin), a broad-spectrum anthracycline antibiotic with cytotoxic properties, is an anti-cancer chemotherapy agent. Doxorubicin has fluorescence properties. Doxorubicin inhibits topoisomerase II with an IC₅₀ of 2.67 μM, thus stopping DNA replication. Doxorubicin reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin induces apoptosis and autophagy . Doxorubicin inhibits human DNA topoisomerase I with an IC₅₀ of 0.8 μM .

HY-N2063

12-Ethyl-9-hydroxycamptothecin	Alkaloids Structural Classification Monophenols other families Pyrrole Alkaloids Classification of Application Fields Source classification Other Diseases Phenols Quinoline Alkaloids Plants Disease Research Fields	Topoisomerase
12-Ethyl-9-hydroxycamptothecin is a derivative of Camptothecin. Camptothecin (CPT), a kind of alkaloid, is a DNA topoisomerase I (Topo I) inhibitor with an IC₅₀ of 679 nM .

HY-N2198

Podocarpusflavone A	Structural Classification Flavonoids Classification of Application Fields Guttiferae Source classification Phenols Polyphenols Plants Garcinia subelliptica Biflavones Disease Research Fields Cancer	Topoisomerase Apoptosis
Podocarpusflavone A is a DNA topoisomerase I inhibitor. Podocarpusflavone A has moderated anti-proliferative activity and induces cell apoptosis in MCF-7. Podocarpusflavone A is developing anti-tumor agents .

HY-121309R

Doxorubicinone (Standard)	Quinones Structural Classification Anthraquinones Source classification Endogenous metabolite	Endogenous Metabolite
Doxorubicinone (Standard) is the analytical standard of Doxorubicinone. This product is intended for research and analytical applications. Doxorubicinone is a metabolite of an anti-cancer chemotherapy agent Doxorubicin . Doxorubicin is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC50s of 0.8 μM and 2.67 μM, respectively.

HY-B0398

Nalidixic acid 1 Publications Verification	Infection Structural Classification Microorganisms Classification of Application Fields Antibiotics Resistance Selection Source classification Antibacterial Disease Research Disease Research Fields Other Antibiotics	Bacterial Antibiotic Topoisomerase
Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria .

HY-N0872R

Isosteviol (Standard)	Structural Classification other families Terpenoids Source classification Diterpenoids Plants	Interleukin Related Reactive Oxygen Species Topoisomerase
Isosteviol (Standard) is the analytical standard of Isosteviol. This product is intended for research and analytical applications. Isosteviol ((-)-Isosteviol) is a derivative of Stevioside through acid catalyzed hydrolysis of Stevioside. Isosteviol inhibits DNA polymerase and DNA topoisomerase and has antibacterial, anticancer and anti-tuberculosis effects .

HY-18258R

Berberine chloride (Standard)	Alkaloids Structural Classification Phellodendron amurense Rupr. Source classification Rutaceae Plants Isoquinoline Alkaloids	Topoisomerase Autophagy Bacterial Reactive Oxygen Species Antibiotic Endogenous Metabolite Parasite
Berberine (chloride) (Standard) is the analytical standard of Berberine (chloride). This product is intended for research and analytical applications. Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .

HY-15142

Doxorubicin hydrochloride Maximum Cited Publications 422 Publications Verification Hydroxydaunorubicin hydrochloride; ADR	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Disease Research Fields	Topoisomerase ADC Cytotoxin AMPK Autophagy Apoptosis HIV HBV Mitophagy Antibiotic Bacterial
Doxorubicin (Hydroxydaunorubicin) hydrochloride, a cytotoxic anthracycline antibiotic, is an anti-cancer chemotherapy agent. Doxorubicin hydrochloride is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC₅₀s of 0.8 μM and 2.67 μM, respectively. Doxorubicin hydrochloride reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin hydrochloride induces apoptosis and autophagy .

HY-13629

Etoposide 95+ Cited Publications VP-16; VP-16-213	Infection Structural Classification Monophenols Classification of Application Fields Sinopodophyllum hexandrum (Royle) Ying Source classification Lignans Phenols Phenylpropanoids Plants Berberidaceae Disease Research Fields	Topoisomerase Autophagy Mitophagy Bacterial Apoptosis Antibiotic
Etoposide (VP-16; VP-16-213) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy .

HY-N12129

6,6′-Dihydroxythiobinupharidine	Structural Classification Alkaloids Terpenoids Other Alkaloids Sesquiterpenes Source classification Plants Nuphar pumila (Timm) de Candolle Nymphaeaceae	Cathepsin
6,6′-Dihydroxythiobinupharidine is a cysteine proteases inhibitor. 6,6′-Dihydroxythiobinupharidine can enhance DNA cleavage mediated by human topoisomerase IIα and IIβ ~8-fold and ~3-fold, respectively .

HY-B0398R

Nalidixic acid (Standard)	Structural Classification Microorganisms Antibiotics Resistance Selection Source classification Antibacterial Disease Research Other Antibiotics	Bacterial Antibiotic Topoisomerase
Nalidixic acid (Standard) is the analytical standard of Nalidixic acid. This product is intended for research and analytical applications. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria .

HY-N0716B

Berberine sulfate 40+ Cited Publications Natural Yellow 18 sulfate	Alkaloids Structural Classification Classification of Application Fields Coptis chinensis Franch. Ranunculaceae Source classification Plants Isoquinoline Alkaloids Inflammation/Immunology Disease Research Fields	Antibiotic Topoisomerase Autophagy Bacterial Reactive Oxygen Species Parasite Apoptosis PI3K Akt Caspase JNK AP-1 NF-κB
Berberine sulfate is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine sulfate induces reactive oxygen species (ROS) generation and inhibits **DNA topoisomerase**. Berberine sulfate has antineoplastic properties. The sulfate form improves bioavailability .

HY-N11536

erythro-Austrobailignan-6	Structural Classification Saururaceae Saururus chinensis (Lour.) Baill. Source classification Lignans Phenylpropanoids Plants	Topoisomerase Apoptosis
erythro-Austrobailignan-6 is an orally active anti-cancer agent. erythro-Austrobailignan-6 inhibits DNA *topoisomerase* I and II activity. erythro-Austrobailignan-6 induces cell apoptosis and increases phosphorylation of p38 and JNK .

HY-13704

SN-38 40+ Cited Publications 7-Ethyl-10-hydroxycamptothecin	Alkaloids Structural Classification Classification of Application Fields Labiatae Samanea saman (Jacq.) Merr. Source classification Quinoline Alkaloids Plants Disease Research Fields Cancer	Drug Metabolite Topoisomerase ADC Cytotoxin Autophagy
SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 inhibits *DNA* and RNA synthesis with IC₅₀s of 0.077 and 1.3 μM, respectively. SN-38 is a payload of sacituzumab govitecan (HY -132254) .

HY-15142R

Doxorubicin hydrochloride (Standard) 1 Publications Verification	Quinones Structural Classification Microorganisms Anthraquinones Source classification	Topoisomerase ADC Cytotoxin AMPK Autophagy Apoptosis HIV HBV Mitophagy Antibiotic Bacterial
Doxorubicin (hydrochloride) (Standard) is the analytical standard of Doxorubicin (hydrochloride). This product is intended for research and analytical applications. Doxorubicin (Hydroxydaunorubicin) hydrochloride, a cytotoxic anthracycline antibiotic, is an anti-cancer chemotherapy agent. Doxorubicin hydrochloride is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC₅₀s of 0.8 μM and 2.67 μM, respectively. Doxorubicin hydrochloride reduces basal phosphorylation of AMPK and its downstream target acetyl-CoA carboxylase. Doxorubicin hydrochloride induces apoptosis and autophagy .

HY-13629R

Etoposide (Standard)	Structural Classification Monophenols Sinopodophyllum hexandrum (Royle) Ying Source classification Lignans Phenols Phenylpropanoids Plants Berberidaceae	Topoisomerase Autophagy Mitophagy Bacterial Apoptosis Antibiotic
Etoposide (Standard) is the analytical standard of Etoposide. This product is intended for research and analytical applications. Etoposide (VP-16; VP-16-213) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy .

HY-13062

Daunorubicin hydrochloride 20+ Cited Publications Daunomycin hydrochloride; RP 13057 hydrochloride; Rubidomycin hydrochloride	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Phenols Polyphenols Disease Research Fields	Topoisomerase DNA/RNA Synthesis ADC Cytotoxin Bacterial Autophagy Apoptosis Antibiotic
Daunorubicin (Daunomycin) hydrochloride is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin hydrochloride inhibits DNA and RNA synthesis. Daunorubicin hydrochloride is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin hydrochloride is also an anthracycline antibiotic. Daunorubicin hydrochloride can be used in the research of infection and variety of cancers, including leukemia, non-Hodgkin lymphomas, Ewing's sarcoma, Wilms' tumor .

HY-13062A

Daunorubicin Daunomycin; RP 13057; Rubidomycin	Infection Quinones Structural Classification Microorganisms Classification of Application Fields Anthraquinones Source classification Phenols Polyphenols Disease Research Fields	Topoisomerase DNA/RNA Synthesis ADC Cytotoxin Autophagy Bacterial Antibiotic Apoptosis
Daunorubicin (Daunomycin) is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin inhibits DNA and RNA synthesis. Daunorubicin is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin is also an anthracycline antibiotic. Daunorubicin can be used in the research of infection and variety of cancers, including leukemia, non-Hodgkin lymphomas, Ewing's sarcoma, Wilms' tumor .

HY-N0716

Berberine Natural Yellow 18	Structural Classification Classification of Application Fields Anti-aging Ranunculaceae Source classification Plants Endogenous metabolite Biological Pesticide Research Agricultural Research Alkaloids Coptis chinensis Franch. Isoquinoline Alkaloids Inflammation/Immunology Disease Research Fields Cancer	Antibiotic Topoisomerase Autophagy Bacterial Reactive Oxygen Species Parasite Apoptosis PI3K Akt Caspase JNK AP-1 NF-κB
Berberine (Natural Yellow 18) is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine (Natural Yellow 18) induces reactive oxygen species (ROS) generation and inhibits **DNA topoisomerase**. Berberine (Natural Yellow 18) has antineoplastic properties. The sulfate form (HY-N0716B) improves bioavailability .

HY-13704R

SN-38 (Standard)	Alkaloids Structural Classification Labiatae Samanea saman (Jacq.) Merr. Source classification Quinoline Alkaloids Plants	Drug Metabolite Topoisomerase ADC Cytotoxin Autophagy
SN-38 (Standard) is the analytical standard of SN-38. This product is intended for research and analytical applications. SN-38 is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 inhibits DNA and RNA synthesis with IC50s of 0.077 and 1.3 μM, respectively. SN-38 is a payload of sacituzumab govitecan (HY -132254) .

HY-P99843

Datopotamab	Classification of Application Fields Disease Research Fields Cancer	TROP2 ADC Antibody
Datopotamab (CDP7657) is a humanized anti trophoblast cell surface antigen 2 (TROP2) antibody. Datopotamab can generate antibody drug conjugates (ADC) (HY-141598) with DNA topoisomerase I inhibitor Deruxtecan (HY-13631E). Datopotamab can be used in the study of triple negative breast cancer and non-small cell lung cancer .

HY-16560

Camptothecin 35+ Cited Publications Campathecin; (S)-(+)-Camptothecin; CPT	Infection Structural Classification Alkaloids Classification of Application Fields Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Disease Research Fields	Topoisomerase ADC Cytotoxin MicroRNA Influenza Virus Apoptosis Fungal Antibiotic
Camptothecin (CPT), a kind of alkaloid, is a **DNA topoisomerase I (Topo I) inhibitor with an IC₅₀ of 679 nM . Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA)** expression patterns in human cancer cells .

HY-13062R

Daunorubicin hydrochloride (Standard)	Quinones Structural Classification Microorganisms Anthraquinones Source classification Phenols Polyphenols	Topoisomerase DNA/RNA Synthesis ADC Cytotoxin Bacterial Autophagy Apoptosis Antibiotic
Daunorubicin (hydrochloride) (Standard) is the analytical standard of Daunorubicin (hydrochloride). This product is intended for research and analytical applications. Daunorubicin (Daunomycin) hydrochloride is a topoisomerase II inhibitor with potent anti-tumor activity. Daunorubicin hydrochloride inhibits DNA and RNA synthesis. Daunorubicin hydrochloride is a cytotoxin that inhibits cancer cell viability and induces apoptosis and necrosis. Daunorubicin hydrochloride is also an anthracycline antibiotic. Daunorubicin hydrochloride can be used in the research of infection and variety of cancers, including leukemia, non-Hodgkin lymphomas, Ewing's sarcoma, Wilms' tumor .

HY-N0095

(S)-10-Hydroxycamptothecin 10-HCPT; 10-Hydroxycamptothecin	Structural Classification Pyrrole Alkaloids Classification of Application Fields Source classification Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants Alkaloids Monophenols Phenols Disease Research Fields Cancer	Topoisomerase Apoptosis
(S)-10-Hydroxycamptothecin (10-HCPT;10-Hydroxycamptothecin) is a DNA topoisomerase I inhibitor of isolated from the Chinese plant Camptotheca accuminata. (S)-10-Hydroxycamptothecin exhibits a remarkable apoptosis-inducing effect. (S)-10-Hydroxycamptothecin has the potential for hepatoma, gastric carcinoma, colon cancer and leukaemia treatment .

HY-N0498

Nitidine chloride 3 Publications Verification	Alkaloids Structural Classification Classification of Application Fields Source classification Rutaceae Zanthoxylum nitidum (Roxb.) DC. Plants Isoquinoline Alkaloids Inflammation/Immunology Disease Research Fields	Parasite Apoptosis STAT Topoisomerase ERK FAK p38 MAPK NF-κB
Nitidine chloride, a potential anti-malarial lead compound derived from Zanthoxylum nitidum (Roxb) DC, exerts potent anticancer activity through diverse pathways, including inducing apoptosis, inhibiting STAT3 signaling cascade, DNA topoisomerase 1 and 2A, ERK and c-Src/FAK associated signaling pathway, also has anti-inflammatory activity. Nitidine chloride inhibits LPS-induced inflammatory cytokines production via MAPK and NF-kB pathway .

HY-N0498R

Nitidine chloride (Standard)	Alkaloids Structural Classification Source classification Rutaceae Zanthoxylum nitidum (Roxb.) DC. Plants Isoquinoline Alkaloids	Parasite Apoptosis STAT Topoisomerase ERK FAK p38 MAPK NF-κB
Nitidine (chloride) (Standard) is the analytical standard of Nitidine (chloride). This product is intended for research and analytical applications. Nitidine chloride, a potential anti-malarial lead compound derived from Zanthoxylum nitidum (Roxb) DC, exerts potent anticancer activity through diverse pathways, including inducing apoptosis, inhibiting STAT3 signaling cascade, DNA topoisomerase 1 and 2A, ERK and c-Src/FAK associated signaling pathway. Nitidine chloride inhibits LPS-induced inflammatory cytokines production via MAPK and NF-kB pathway .

HY-N0354

Anthraquinone	Seeds of Cassia tora Linn. Quinones Structural Classification other families Classification of Application Fields Leguminosae Anthraquinones Source classification Other Diseases Plants Disease Research Fields	Virus Protease Topoisomerase Apoptosis
Anthraquinone is used as a precursor for dye formation and agrochemicals, existing in different organisms, such as bacteria, fungi, plants, and some animals. Anthraquinone has biological activities: anticancer, antiinflammatory, diuretic, antiarthritic, antifungal, antibacterial, antimalarial and antioxidant. Anthraquinone also plays an important role in the primary metabolism of plants by acting on the electron transport chain through the inhibition of energy transfer in the photosynthetic process. Anthraquinone can intercalates into DNA and inhibits the topoisomerase II (topo II) enzyme, resulting in cell death via Apoptosis .

HY-N0095R

(S)-10-Hydroxycamptothecin (Standard)	Alkaloids Structural Classification Monophenols Pyrrole Alkaloids Source classification Phenols Quinoline Alkaloids Camptotheca acuminata Decne. Nyssaceae Plants	Topoisomerase Apoptosis
(S)-10-Hydroxycamptothecin (Standard) is the analytical standard of (S)-10-Hydroxycamptothecin. This product is intended for research and analytical applications. (S)-10-Hydroxycamptothecin (10-HCPT;10-Hydroxycamptothecin) is a DNA topoisomerase I inhibitor of isolated from the Chinese plant Camptotheca accuminata. (S)-10-Hydroxycamptothecin exhibits a remarkable apoptosis-inducing effect. (S)-10-Hydroxycamptothecin has the potential for hepatoma, gastric carcinoma, colon cancer and leukaemia treatment .

Cat. No.	Product Name	Chemical Structure

HY-16562S1

Irinotecan-d10 hydrochloride
Irinotecan-d₁₀ (hydrochloride) is the deuterium labeled Irinotecan. Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex[1][2].

HY-13631AS

Exatecan-d5 mesylate
Exatecan-d₅ (mesylate) is deuterium labeled Exatecan mesylate. Exatecan mesylate is a DNA topoisomerase I inhibitor, with an IC50 of 0.975 μg/mL[1].

HY-13562AS

Banoxantrone-d12 dihydrochloride
Banoxantrone-d₁₂ (dihydrochloride) is the deuterium labeled Banoxantrone dihydrochloride. Banoxantrone is a novel bioreductive agent that can be reduced to a stable, DNA-affinic compound AQ4, which is a potent topoisomerase II inhibitor.

HY-13631DS

Dxd-d5
Dxd-d₅ is a deuterium labeled Dxd. Dxd is a potent DNA topoisomerase I inhibitor, with an IC50 of 0.31 μM, used as a conjugated drug of HER2-targeting ADC (DS-8201a) [1].

HY-16562S

Irinotecan-d10
Irinotecan-d₁₀ is a deuterium labeled Irinotecan ((+)-Irinotecan). Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex[1].

HY-15552S

Podofilox-d6
Podofilox-d₆ is the deuterium labeled Podofilox. Podofilox (Podophyllotoxin) is a potent inhibitor of microtubule assembly and DNA topoisomerase II[1][2].

HY-121309S

Doxorubicinone-d3
Doxorubicinone-d₃ is the deuterium labeled Doxorubicinone. Doxorubicinone is a metabolite of an anti-cancer chemotherapy agent Doxorubicin[1]. Doxorubicin is a potent human DNA topoisomerase I and topoisomerase II inhibitor with IC50s of 0.8 μM and 2.67 μM, respectively.

HY-13562S

Banoxantrone-d12
Banoxantrone-d₁₂ is the deuterium labeled banoxantrone. Banoxantrone is a novel bioreductive agent that can be reduced to a stable, DNA-affinic compound AQ4, which is a potent topoisomerase II inhibitor.

HY-18258S

Berberine-d6 chloride
Berberine-d₆ (chloride) is the deuterium labeled Berberine chloride. Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties[1].

HY-B0398S

Nalidixic Acid-d5

Nalidixic Acid-d₅ is the deuterium labeled Nalidixic acid. Nalidixic acid, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria[1].

HY-10581AS

Gatifloxacin-d3 hydrochloride

Gatifloxacin-d₃ (hydrochloride) is the deuterium labeled Gatifloxacin (hydrochloride). Gatifloxacin hydrochloride (AM-1155; BMS-206584; PD135432) is a potent fluoroquinolone antibiotic with broad-spectrum antibacterial activity. Gatifloxacin hydrochloride inhibits bacterial type II topoisomerases (IC50=13.8 μg/ml for S. aureus topoisomerase IV) and E. coli DNA gyrase (IC50 = 0.109 μg/ml). Gatifloxacin hydrochloride can be used to treat bacterial conjunctivitis in vivo.

HY-13629S1

Etoposide-13C,d3
Etoposide- ¹³C,d₃ is the ¹³C- and deuterium labeled Etoposide. Etoposide (VP-16; VP-16-213) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy[1].

HY-13629S

Etoposide-d3
Etoposide-d3 (VP-16-d3) is the deuterium labeled Etoposide (HY-13629). Etoposide (VP-16) is an anti-cancer chemotherapy agent. Etoposide inhibits topoisomerase II, thus stopping DNA replication. Etoposide induces cell cycle arrest, apoptosis and autophagy .

HY-13704S

SN-38-d3
SN-38-d₃ is the deuterium labeled SN-38. SN-38 (NK012) is an active metabolite of the Topoisomerase I inhibitor Irinotecan. SN-38 (NK012) inhibits DNA and RNA synthesis with IC50s of 0.077 and 1.3 μM, respectively[1][2][3][4].

HY-B0268S1

Enoxacin-d8 hydrochloride

Enoxacin-d₈ (hydrochloride) is deuterium labeled Enoxacin. Enoxacin (AT 2266), a fluoroquinolone, interferes with DNA replication and inhibits bacterial DNA gyrase (IC50=126 µg/ml) and topoisomerase IV (IC50=26.5 µg/ml). Enoxacin is a miRNA processing activator and enhances siRNA-mediated mRNA degradation and promotes the biogenesis of endogenous miRNAs. Enoxacin has potent activities against gram-positive and -negative bacteria. Enoxacin is a cancer-specific growth inhibitor that acts by enhancing TAR RNA-binding protein 2 (TRBP)-mediated microRNA processing[1][2][3][4].

HY-16560S

Camptothecin-d5

Camptothecin-d₅ is the deuterium labeled Camptothecin. Camptothecin (CPT), a kind of alkaloid, is a DNA topoisomerase I (Topo I) inhibitor with an IC50 of 679 nM[1]. Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA) expression patterns in human cancer cells[2][3].

Cat. No.	Product Name		Classification

HY-134723

DBCO-PEG4-GGFG-Dxd		DBCO
DBCO-PEG4-GGFG-Dxd is a agent-linker conjugate for ADC with potent antitumor activity by using Dxd (a DNA topoisomerase I inhibitor), linked via the cleavable ADC linker DBCO-PEG4-GGFG . DBCO-PEG4-GGFG-Dxd is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.

HY-164792

DBCO-PEG3-VC-Exatecan		DBCO
DBCO-PEG3-VC-Exatecan (compound 25) is a Drug-Linker Conjugate for ADC. DBCO-PEG3-VC-Exatecan contains the ADC linker (DBCO-PEG3-VC) and a DNA topoisomerase I inhibitor Exatecan (HY-13631) .

Cat. No.	Product Name		Classification

HY-W010800

Cholesteryl hemisuccinate		Cholesterol
Cholesteryl hemisuccinate is a with hepatoprotective an anticancer activity. Cholesteryl hemisuccinate inhibits Acetaminophen (AAP, HY-66005) hepatotoxicity, and prevents AAP-induced hepatic apoptosis and necrosis. Cholesteryl hemisuccinate inhibits DNA polymerase and **DNA topoisomerase** to inhibit DNA replication and repair and cell division. Thus, Cholesteryl hemisuccinate inhibits tumor growth .

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