1. Signaling Pathways
  2. Antibody-drug Conjugate/ADC Related
  3. ADC Cytotoxin

ADC Cytotoxin

Cytotoxin

ADC Payload

ADC cytotoxins (also known as payloads) are cytotoxic agents that induce target cell death in Antibody Drug Conjugates (ADCs). An ADC is a targeted agent composed with a monoclonal antibody, a linker and a cytotoxin. The cytotoxin is the most important component as it determines the potency to kill cancer cells of an ADC.

There are many cytotoxins which are currently being used such as Calicheamicins, Duocarmycins, Pyrrolobenzodiazepines (PBDs), Camptothecins, Daunorubicins/Doxorubicins, Auristatins and Maytansinoids. They can be divided in two classes based on their mechanism of action, DNA damaging agents and tubulin inhibitors. Among them Calicheamicins, Duocarmycins and PBDs are DNA minor grove binders, Camptothecins and Daunorubicins/Doxorubicins are topoisomerase inhibitors, which are DNA damaging agents. Auristatins and Maytansinoids are tubulin inhibitors. Except for the listed cytotoxins, there are numbers of traditional cytotoxic agents with similar mechanisms of killing cancer cells and can also be used in the development of ADCs.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-15142
    Doxorubicin hydrochloride
    99.90%
    Doxorubicin hydrochloride (Hydroxydaunorubicin hydrochloride; ADR), 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.
    Doxorubicin hydrochloride
  • HY-14648
    Dexamethasone
    99.86%
    Dexamethasone (Hexadecadrol) is a glucocorticoid receptor agonist, apoptosis inducer, and common disease inducer in experimental animals, constructing models of muscle atrophy, hypertension, and depression. Dexamethasone can inhibit the production of inflammatory miRNA-155 exosomes in macrophages and significantly reduce the expression of inflammatory factors in neutrophils and monocytes. Dexamethasone also has potential for use in COVID-19 research.
    Dexamethasone
  • HY-B0015
    Paclitaxel
    99.97%
    Paclitaxel is a naturally occurring antineoplastic agent and stabilizes tubulin polymerization. Paclitaxel can cause both mitotic arrest and apoptotic cell death. Paclitaxel also induces autophagy.
    Paclitaxel
  • HY-15162
    Monomethyl auristatin E
    99.97%
    Monomethyl auristatin E (MMAE; SGD-1010) is a synthetic derivative of dolastatin 10 and functions as a potent mitotic inhibitor by inhibiting tubulin polymerization. MMAE is widely used as a cytotoxic component of antibody-drug conjugates (ADCs) to treat several different cancer types.
    Monomethyl auristatin E
  • HY-13631A
    Exatecan mesylate
    99.97%
    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.
    Exatecan mesylate
  • HY-13631AS
    Exatecan-d5 mesylate
    99.82%
    c is deuterium labeled Exatecan mesylate (HY-13631A). Exatecan mesylate 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.
    Exatecan-d<sub>5</sub> mesylate
  • HY-159783
    Mal-Exatecan
    Mal-Exatecan is a Mal (Maleimide) modified Exatecan (HY-13631), a DNA topoisomerase I (topoisomerase I) inhibitor.
    Mal-Exatecan
  • HY-164860
    Glucocorticoid receptor agonist-5
    99.95%
    Glucocorticoid receptor agonist-5 (compound 4), a glucocorticoid molecule, is a potent glucocorticoid receptor agonist. Glucocorticoid receptor agonist-5 shows anti-inflammatory and immunosuppressive activity. Glucocorticoid receptor agonist-5 is used as an ADC Cytotoxin for antibody-drug conjugate.
    Glucocorticoid receptor agonist-5
  • HY-13631D
    Dxd
    99.43%
    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).
    Dxd
  • HY-13704
    SN-38
    99.89%
    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).
    SN-38
  • HY-14519
    Methotrexate
    99.87%
    Methotrexate (Amethopterin), an antimetabolite and antifolate agent, inhibits the enzyme dihydrofolate reductase, thereby preventing the conversion of folic acid into tetrahydrofolate, and inhibiting DNA synthesis. Methotrexate, also an immunosuppressant and antineoplastic agent, is used for the research of rheumatoid arthritis and a number of different cancers (such as acute lymphoblastic leukemia).
    Methotrexate
  • HY-16560
    Camptothecin
    99.86%
    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.
    Camptothecin
  • HY-13631
    Exatecan
    99.93%
    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.
    Exatecan
  • HY-19792
    Mertansine
    99.80%
    Mertansine (DM1) is a microtubulin inhibitor and is an antibody-conjugatable maytansinoid that is developed to overcome systemic toxicity associated with maytansine and to enhance tumor-specific delivery. Mertansine can be attached to a monoclonal antibody with a linker to create an antibody-drug conjugate (ADC).
    Mertansine
  • HY-15579
    MMAF
    99.92%
    MMAF (Monomethylauristatin F) is a potent tubulin polymerization inhibitor and is used as a antitumor agent. MMAF (Monomethylauristatin F) is widely used as a cytotoxic component of antibody-drug conjugates (ADCs) such as vorsetuzumab mafodotin and SGN-CD19A.
    MMAF
  • HY-13062
    Daunorubicin hydrochloride
    99.67%
    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.
    Daunorubicin hydrochloride
  • HY-42487
    Exatecan Intermediate 1
    99.99%
    Exatecan Intermediate 1 (compound 6) is an intermediate of Exatecan (HY-13631). Exatecan is a DNA topoisomerase I inhibitor with anticancer effects.
    Exatecan Intermediate 1
  • HY-19610
    α-Amanitin
    99.92%
    α-Amanitin is the principal toxin of several deadly poisonous mushrooms, exerting its toxic function by inhibiting RNA-polymerase II.
    α-Amanitin
  • HY-13442
    Eribulin
    99.92%
    Eribulin (E7389) is a microtubule targeting agent that is used for the research of metastatic breast cancer. Eribulin inhibits the proliferation of cancer cells by binding microtubule proteins and microtubules.
    Eribulin
  • HY-12454
    DM4
    99.64%
    DM4 is is an antitubulin agent that inhibit cell division. DM4 can be used in the preparation of antibody agent conjugate.
    DM4
Cat. No. Product Name / Synonyms Application Reactivity

Auristatin

Calicheamicins

Camptothecins

Daunorubicins/Doxorubicins

Duocarmycins

Maytansinoids

Pyrrolobenzodiazepines

Traditional Cytotoxic Agents

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ADC Cytotoxin
Product NameAuristatinCalicheamicinsCamptothecinsDaunorubicins/DoxorubicinsDuocarmycinsMaytansinoidsPyrrolobenzodiazepinesTraditional Cytotoxic AgentsPurity    
Doxorubicin hydrochloride   
Daunorubicins/Doxorubicins
    99.90%
Paclitaxel       
Traditional Cytotoxic Agents
99.97%
Monomethyl auristatin E
Auristatin
       99.97%
Exatecan mesylate  
Camptothecins
     99.97%
Exatecan-d5 mesylate  
Camptothecins
     99.82%
Glucocorticoid receptor agonist-5       
Traditional Cytotoxic Agents
99.95%
Dxd  
Camptothecins
     99.43%
SN-38  
Camptothecins
     99.89%
Methotrexate       
Traditional Cytotoxic Agents
99.87%
Camptothecin  
Camptothecins
     99.86%
Exatecan  
Camptothecins
     99.93%
Mertansine     
Maytansinoids
  99.80%
MMAF
Auristatin
       99.92%
Daunorubicin hydrochloride   
Daunorubicins/Doxorubicins
    99.67%
Exatecan Intermediate 1  
Camptothecins
     99.99%
α-Amanitin       
Traditional Cytotoxic Agents
99.92%
MMAE-d8
Auristatin
       99.29%
Calicheamicin 
Calicheamicins
      98.28%
Methotrexate disodium       
Traditional Cytotoxic Agents
99.71%
Exatecan Intermediate 2  
Camptothecins
     99.99%
SG3199      
Pyrrolobenzodiazepines
 98.94%
PNU-159682   
Daunorubicins/Doxorubicins
    98.25%
(4-NH2)-Exatecan  
Camptothecins
     99.93%
Aldoxorubicin   
Daunorubicins/Doxorubicins
    
Auristatin E
Auristatin
       99.82%
Duocarmycin DM free base   
Daunorubicins/Doxorubicins
    99.69%
Exatecan Intermediate 6  
Camptothecins
     98.92%
SJG-136      
Pyrrolobenzodiazepines
 99.47%
MMAF hydrochloride
Auristatin
       99.93%
Ansamitocin P-3     
Maytansinoids
  ≥98.0%
Taltobulin       
Traditional Cytotoxic Agents
99.90%
PF-06380101
Auristatin
       99.47%
Exatecan (mesylate) (GMP)  
Camptothecins
     
(R)-Exatecan Intermediate 1  
Camptothecins
     99.96%
Duocarmycin TM    
Duocarmycins
   98.04%
SG2057      
Pyrrolobenzodiazepines
 99.93%
Cyclopropaneacetamide-Exatecan  
Camptothecins
     99.60%
(1R,9R)-Exatecan mesylate  
Camptothecins
     99.94%
Duocarmycin SA    
Duocarmycins
   99.55%
MMAF-OMe
Auristatin
       99.62%
(1S,9R)-Exatecan mesylate  
Camptothecins
     98.23%
Tubulysin A       
Traditional Cytotoxic Agents
99.08%
Dolastatin 10
Auristatin
       98.11%
Ac-Exatecan  
Camptothecins
     98.70%
MMAD
Auristatin
       99.66%
β-Amanitin       
Traditional Cytotoxic Agents
Daun02   
Daunorubicins/Doxorubicins
    98.72%
DM1-SMe     
Maytansinoids
  98.16%
Fmoc-MMAE
Auristatin
       99.20%
(αR)-Cyclopropaneacetamide-Exatecan  
Camptothecins
     99.75%
N-Me-L-Ala-maytansinol     
Maytansinoids
  99.89%
MMAF sodium
Auristatin
       99.59%
Hemiasterlin      
Pyrrolobenzodiazepines
 99.77%
Exatecan Intermediate 5  
Camptothecins
     99.98%
MMAF-d8 hydrochloride
Auristatin
       99.70%
DM4-SMe     
Maytansinoids
  99.99%
γ-Amanitin       
Traditional Cytotoxic Agents
Duocarmycin GA    
Duocarmycins
   99.00%
Tomaymycin DM      
Pyrrolobenzodiazepines
 98.01%
DC0-NH2    
Duocarmycins
   
10-Deacetyl-7-xylosyl paclitaxel       
Traditional Cytotoxic Agents
99.65%
Exatecan Intermediate 7  
Camptothecins
     99.24%
DM3     
Maytansinoids
  
Exatecan-methylacetamide-OH  
Camptothecins
     
Exatecan-amide-cyclopropanol  
Camptothecins
     98.57%
PNU-159682 carboxylic acid   
Daunorubicins/Doxorubicins
    
Decyclohexanamine-Exatecan  
Camptothecins
     98.38%
Exatecan analog 36  
Camptothecins
     98.71%
Exatecan intermediate 9  
Camptothecins
     99.80%
Exatecan Intermediate 4  
Camptothecins
     
PF-06380101-d8
Auristatin
       99.37%
Doxorubicin   
Daunorubicins/Doxorubicins
    
DC1SMe    
Duocarmycins
   ≥98.0%
Daunorubicin   
Daunorubicins/Doxorubicins
    
Duocarmycin Analog    
Duocarmycins
   
Maytansinoid DM4     
Maytansinoids
  
S-methyl DM1     
Maytansinoids
  99.58%
7-MAD-MDCPT  
Camptothecins
     98.00%
Taltobulin hydrochloride       
Traditional Cytotoxic Agents
99.34%
Exatecan intermediate 10  
Camptothecins
     99.92%
Taltobulin trifluoroacetate       
Traditional Cytotoxic Agents
99.08%
Exatecan Intermediate 4 dihydrochloride  
Camptothecins
     99.92%
Exatecan Intermediate 2 hydrochloride  
Camptothecins
     99.94%
(rac)-Exatecan Intermediate 1  
Camptothecins
     99.84%
Exatecan mesylate dihydrate  
Camptothecins
     
Duocarmycin A    
Duocarmycins
   
C-11       
Traditional Cytotoxic Agents
DC1    
Duocarmycins
   
(+)-CBI-CDPI1    
Duocarmycins
   
DM3-SMe     
Maytansinoids
  
Seco-Duocarmycin SA    
Duocarmycins
   
DMEA-PNU-159682   
Daunorubicins/Doxorubicins
    
DC41SMe    
Duocarmycins
   
(+)-CBI-CDPI2    
Duocarmycins
   
Duocarmycin MB    
Duocarmycins
   
DC41    
Duocarmycins
   
DC4SMe    
Duocarmycins
   
Duocarmycin DM   
Daunorubicins/Doxorubicins
    
Seco-Duocarmycin TM    
Duocarmycins
   
Methotrexate monohydrate       
Traditional Cytotoxic Agents
Aniline-MPB-amino-C3-PBD      
Pyrrolobenzodiazepines
 
Rebeccamycin       
Traditional Cytotoxic Agents
DC10SMe    
Duocarmycins
   
Daunorubicin citrate   
Daunorubicins/Doxorubicins
    
Dolastatin 15
Auristatin
       
Isofistularin-3       
Traditional Cytotoxic Agents
ε-Amanitin       
Traditional Cytotoxic Agents
Gly-Cyclopropane-Exatecan  
Camptothecins
     
Mensacarcin       
Traditional Cytotoxic Agents
Tubulysin IM-2       
Traditional Cytotoxic Agents
Py-MPB-amino-C3-PBD      
Pyrrolobenzodiazepines
 
Dimethyl-SGD-1882      
Pyrrolobenzodiazepines
 
Top1 inhibitor 1  
Camptothecins
     
Exatecan-amide-bicyclo[1.1.1]pentan-1-ylmethanol  
Camptothecins
     
Tubulysin IM-3       
Traditional Cytotoxic Agents
Exatecan-amide-bicyclo[1.1.1]pentan-1-ol  
Camptothecins
     
MMAD-d8
Auristatin
       98.95%
17-AEP-GA       
Traditional Cytotoxic Agents
(5-Cl)-Exatecan  
Camptothecins
     
Polyketomycin       
Traditional Cytotoxic Agents
Azonafide-PEABA       
Traditional Cytotoxic Agents
(1-OH)-Exatecan  
Camptothecins
     
Duocarmycin MA    
Duocarmycins
   
17-GMB-APA-GA       
Traditional Cytotoxic Agents
Exatecan analogue 1  
Camptothecins
     
NH2-methylpropanamide-Exatecan TFA  
Camptothecins
     99.80%
Tubulysin IM-1       
Traditional Cytotoxic Agents
Corixetan       
Traditional Cytotoxic Agents
Sandramycin       
Traditional Cytotoxic Agents
Exatecan intermediate 11  
Camptothecins
     
Exatecan intermediate 8  
Camptothecins
     
Exatecan Intermediate 3  
Camptothecins
     
Exatecan-amide-CH2-O-CH2-CH2-OH  
Camptothecins