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Pathways Recommended:	Cell Cycle/DNA Damage

Results for "

DNA topoisomerase I

" in MedChemExpress (MCE) Product Catalog:

By Targets:	DNA-PK (1) DNA/RNA Synthesis (5) Topoisomerase (95) ADC Antibody (1) ADC Cytotoxin (32) AMPK (3) Antibiotic (7) Antibody-Drug Conjugates (ADCs) (2) Apoptosis (18) ATM/ATR (1) Autophagy (10) Bacterial (5) Caspase (1) Cuproptosis (1) Drug Metabolite (2) Drug-Linker Conjugates for ADC (26) Endogenous Metabolite (3) Fungal (3) HBV (3) HDAC (1) HIV (3) Influenza Virus (2) Isotope-Labeled Compounds (1) MicroRNA (2) Mitophagy (3) NF-κB (1) NO Synthase (1) Parasite (1) TROP2 (1)
By Research Areas:	Cancer (115) Infection (11) Inflammation/Immunology (2) Metabolic Disease (1)
Click Chemistry:	DBCO (2)

117

Inhibitors & Agonists

Fluorescent Dye

Biochemical Assay Reagents

Inhibitory Antibodies

Natural
Products

Recombinant Proteins

Isotope-Labeled Compounds

Antibodies

Click Chemistry

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-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-16560

Camptothecin 35+ Cited Publications Campathecin; (S)-(+)-Camptothecin; CPT	Topoisomerase ADC Cytotoxin MicroRNA Influenza Virus Apoptosis Fungal Antibiotic	Infection Cancer
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-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) .

HY-164152A

ADC Control Human IgG1-Deruxtecan (DAR 8)	Antibody-Drug Conjugates (ADCs) Topoisomerase	Cancer
ADC Control Human IgG1-Deruxtecan (DAR 8) 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) .

HY-128946

CL2A-SN-38 2 Publications Verification	Drug-Linker Conjugates for ADC	Inflammation/Immunology Cancer
CL2A-SN-38 is a agent-linker conjugate composed of a potent a DNA Topoisomerase I inhibitor SN-38 and a linker CL2A to make antibody agent conjugate (ADC). CL2A-SN-38 provides significant and specific antitumor effects against a range of human solid tumor types. CL2A-SN-38 uses hydrolyzable linker to deliver active agents within tumor cells and in the tumor microenvironment, resulting in bystander effects .

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-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-160774

Val-Cit-PABC-DOX	Drug-Linker Conjugates for ADC Topoisomerase	Cancer
Val-Cit-PABC-DOX (compound 10109), an epsilon-poly-L-lysine-based drug conjugate, is an agent-linker conjugate for ADC by using a DNA topoisomerase I and topoisomerase II inhibitor, Doxorubicin (HY-15142), linked via the linker, Val-Cit-PABC .

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-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-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-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-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-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-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-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-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-117688

WJ35435	HDAC Topoisomerase Apoptosis	Cancer
WJ35435 is a dual-targeted anticancer hybrid that induces anti-HDAC (in particular HDAC1 and HDAC6) and anti-topoisomerase I activities that causes DNA damage associated with a low DNA repair capability and induces cell cycle arrest at G1- and G2-phase to apoptosis. WJ35435 induces histone H3 acetylation and phosphorylation, α-tubulin acetylation and γ-H2AX formation to achieve anti-HDAC effect. WJ35435 is promising for research of cancer .

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-N10115

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

HY-143402

Topoisomerase I/II inhibitor 2	Topoisomerase	Cancer
Topoisomerase I/II inhibitor 2 (compound 1a) is a potent *Topoisomerase* inhibitor (IC₅₀= 9.82 μM on Huh7 cells and 6.83 μM on LM9 cells). Topoisomerase I/II inhibitor 2 has dual inhibition on DNA topoisomerase I/II, also can obviously reduce the growth of xenograft tumor in mice model. Topoisomerase I/II inhibitor 2 has the potential value in researching liver cancer .

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-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.

HY-13618

Edotecarin J 107088; PF 804950	Topoisomerase	Cancer
Edotecarin is a potent inhibitor of topoisomerase I that can induces single-strand DNA cleavage, with IC₅₀ of 50 nM.

HY-13565

Becatecarin NSC 655649; BMS 181176; BMY 27557	Topoisomerase	Cancer
Becatecarin is a rebeccamycin analog with antitumor effects. Becatecarin intercalates into DNA and inhibites the catalytic activity of **topoisomerases I/II**.

HY-N2063

12-Ethyl-9-hydroxycamptothecin	Topoisomerase	Others
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-U00248A

LMP744 hydrochloride MJ-III65 hydrochloride; NSC706744 hydrochloride	Topoisomerase	Cancer
LMP744 hydrochloride (MJ-III65 hydrochloride) is a DNA intercalator and Topoisomerase I (Top1) inhibitor with antitumor activity .

HY-U00248

LMP744 MJ-III65; NSC706744	Topoisomerase	Cancer
LMP744 (MJ-III65) is a DNA intercalator and Topoisomerase I (Top1) inhibitor with antitumor activity .

HY-118581

Coralyne chloride	Topoisomerase	Cancer
Coralyne chloride is a protoberberine alkaloid with potent anti-cancer activities. Coralyne chloride acts as a potent topoisomerase I poison and induces Top I mediated DNA cleavage . Coralyne chloride can be used for preparing?coralyne derivatives?as DNA binding fluorescent probes .

HY-N10367

Corydamine	Topoisomerase	Cancer
Corydamine, 3-arylisoquinoline alkaloid, is a potent **DNA topoisomerase I/II** inhibitor. Corydamine has anti-cancer activity .

HY-13631AS

Exatecan-d5 mesylate DX8951f-d₅; Exatecan-d₅ mesylate; Deuterated labeled Exatecan mesylate	ADC Cytotoxin Topoisomerase	Cancer
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-13631

Exatecan 5+ Cited Publications DX-8951	ADC Cytotoxin Topoisomerase	Cancer
Exatecan (DX-8951) 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-121309

Doxorubicinone Adriamycin aglycone; Adriamycinone	Endogenous Metabolite	Cancer
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-13631A

Exatecan mesylate 5+ Cited Publications DX8951f	ADC Cytotoxin Topoisomerase	Cancer
Exatecan mesylate (DX8951f) is a DNA topoisomerase I inhibitor, with an IC₅₀ of 2.2 μM (0.975 μg/mL). Exatecan mesylate can be used in cancer research.

HY-158230

SN-398	Topoisomerase	Cancer
SN-398 is a derivative of Camptothecin (HY-158230), which is an antitumor drug. Acting by inhibiting mammalian DNA topoisomerase I (Topo I), stabilizing the Topo I-DNA complex prevents DNA rewiring to induce Topo I mediated DNA breaks. In Hela cell tests, SN-398 shows stronger antitumor activity than SN-38 (HY-13704) (IC₅₀=1.562 μM). SN-398 can be used to study the anti-proliferation and growth inhibition of Topo I in cancer cells .

HY-13744

Rubitecan RFS 2000; 9-Nitrocamptothecin	Topoisomerase	Cancer
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-N2198

Podocarpusflavone A	Topoisomerase Apoptosis	Cancer
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-13631P

Exatecan mesylate dihydrate DX-8951 mesylate dihydrate	ADC Cytotoxin Topoisomerase	Cancer
Exatecan (DX-8951) mesylate dihydrate 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-145078

PNU-EDA-Gly5	Drug-Linker Conjugates for ADC	Cancer
PNU-EDA-Gly5 is an oligo-glycine linker-payload for ADC synthesis, composed of a DNA topoisomerase I inhibitor PNU-159682 and a linker EDA-Gly5 .

HY-160756A

Val-Cit-Exatecan TFA	Drug-Linker Conjugates for ADC	Cancer
Val-Cit-Exatecan TFA is an agent-linker conjugate for ADC. Val-Cit-Exatecan TFA is composed of a DNA topoisomerase I Exatecan (HY-13631) and a cathepsin cleavable ADC linker .

HY-121309S

Doxorubicinone-d3 Adriamycin aglycone-d₃; Adriamycinone-d₃	Endogenous Metabolite	Cancer
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-13631D

Dxd 5+ Cited Publications Exatecan derivative for ADC	Topoisomerase ADC Cytotoxin	Cancer
Dxd (Exatecan derivative for ADC) 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).

HY-156848

Fmoc-GGFG-DXd	Drug-Linker Conjugates for ADC	Cancer
Fmoc-GGFG-DXd is a drug-linker conjugate for ADC. Fmoc-GGFG-DXd contains a ADC linker Fmoc-GGFG and a DNA topoisomerase I inhibitor DXd (HY-13631D) .

HY-161970

XSJ05	Topoisomerase Apoptosis	Cancer
XSJ05 is a camptothecin (CPT) derivative that can inhibit topoisomerase I (Topo I) to exert anti-cancer activity. XSJ05 can trigger DNA double-strand breaks, leading to DNA damage. XSJ05 can inhibit the growth of colorectal cancer (CRC), arrest the cell cycle in G2/M phase, and induce apoptosis .

HY-121309R

Doxorubicinone (Standard)	Endogenous Metabolite	Cancer
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.

Cat. No.	Product Name	Target	Research Area

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) .

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 .

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-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-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-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-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-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-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-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-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-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-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-15142

Doxorubicin hydrochloride Maximum Cited Publications 430 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-N6865

Groenlandicine 2 Publications Verification	Alkaloids Piperidine Alkaloids Monophenols Classification of Application Fields Source classification Ranunculaceae Coptis chinensis Franch. Phenols Metabolic Disease Plants Isoquinoline Alkaloids Disease Research Fields	Topoisomerase
Groenlandicine is a protoberberine alkaloid isolated from Coptidis Rhizoma. Groenlandicine exhibits moderate inhibitory effect with IC₅₀ value of 154.2 μM for human recombinant aldose reductase (HRAR) . Groenlandicine selectively induces topoisomerase I-mediated DNA cleavage .

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-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-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-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 .

Recombinant Proteins Recommended:

DNA Topoisomerase I

Species:	Human (2)
Tag:	His (2)
Source:	Sf9 insect cells (2)

Cat. No.	Compare	Product Name	Species	Source

HY-P73584

	TOP1 Protein, Human (765a.a, sf9, His) DNA topoisomerase 1; TOP1	Human	Sf9 insect cells
	The TOP1 protein is critical in cellular processes, mitigating DNA supercoiling and torsional tension during replication and transcription. It does this by transiently cutting and rejoining a DNA strand, introducing breaks through transesterification. TOP1 Protein, Human (765a.a, sf9, His) is the recombinant human-derived TOP1 protein, expressed by Sf9 insect cells , with N-His labeled tag. The total length of TOP1 Protein, Human (765a.a, sf9, His) is 765 a.a., with molecular weight of ~93.1 kDa.

HY-P73585

	TOP1 Protein, Human (575a.a, sf9, His) DNA topoisomerase 1; TOP1	Human	Sf9 insect cells
	The TOP1 protein is critical in cellular processes, mitigating DNA supercoiling and torsional tension during replication and transcription. It does this by transiently cutting and rejoining a DNA strand, introducing breaks through transesterification. TOP1 Protein, Human (575a.a, sf9, His) is the recombinant human-derived TOP1 protein, expressed by Sf9 insect cells , with N-His labeled tag. The total length of TOP1 Protein, Human (575a.a, sf9, His) is 575 a.a., with molecular weight of ~70.4 kDa.

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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-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-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].

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-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-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.

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HY-P82492

	Topoisomerase I Antibody (YA2237) TOP1; DNA topoisomerase 1; DNA topoisomerase I	WB, IHC-F, IHC-P, ICC/IF	Human, Mouse, Rat
	Topoisomerase I Antibody (YA2237) is a rabbit-derived non-conjugated IgG antibody (Clone NO.: YA2237), targeting Topoisomerase I, with a predicted molecular weight of 91 kDa (observed band size: 91 kDa). Topoisomerase I Antibody (YA2237) can be used for WB, IHC-F, IHC-P, ICC/IF experiment in human, mouse, rat background.

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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) .

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