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

ADC Payload

ADC Cytotoxin

Related Products

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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.

ADC Cytotoxin Isoform Specific Products:

ADC Cytotoxin Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-W742981
    Budesonide-d6
    Budesonide-d6 is deuterium labeled Budesonide. Budesonide, an inhaled glucocortical steroid, is an orally active glucocorticoid receptor agonist. Budesonide decreases the size of lung tumors, reverses DNA hypomethylation and modulates mRNA expression of genes. Budesonide is an anti-inflammatory agent used for asthma.
    Budesonide-d<sub>6</sub>
  • HY-79254
    MMAF intermediate 2
    		99.77%
    MMAF intermediate 2 is an intermediate for the synthesis of MMAF (HY-15579). MMAF (Monomethylauristatin F) is a potent inhibitor of tubulin polymerization and the cytotoxic (ADC Cytotoxin) component of classic antibody drug conjugates (ADCs), such as Vorsetuzumab mafodotin and SGN-CD19A.
    MMAF intermediate 2
  • HY-156516A
    10NH2-11F-Camptothecin TFA
    10NH2-11F-Camptothecin TFA is a Camptothecin (HY-16560) analogue that serves as an ADC cytotoxin for the synthesis of antibody-drug conjugates (ADCs). 10NH2-11F-Camptothecin TFA has anticancer effects (WO2022246576A1; compound 140).
    10NH2-11F-Camptothecin TFA
  • HY-169261
    7-Methoxy-9-methylfuro[2,3-b]-quinoline-4,5,8(9H)-trione
    7-Methoxy-9-methylfuro[2,3-b]-quinoline-4,5,8(9H)-trione is a synthetic intermediate that can been used in the synthesis of the alkaloid Acronycidine.
    7-Methoxy-9-methylfuro[2,3-b]-quinoline-4,5,8(9H)-trione
  • HY-79198
    Monomethyl auristatin E intermediate-16
    Monomethyl auristatin E intermediate-16 is an intermediate reagent in the synthesis of Monomethyl auristatin E (HY-15162). Monomethyl auristatin E (MMAE) is a microtubule/tubulin inhibitor with anticancer activity. MMAE is widely used as the cytotoxic component (ADC Cytotoxin) of antibody-drug conjugates (ADCs).
    Monomethyl auristatin E intermediate-16
  • HY-48564
    TAM558 intermediate-5
    TAM558 intermediate-54 is an intermediate in the synthesis of TAM558 (HY-148127).TAM558 is the payload molecule used in the synthesis of OMTX705.OMTX705 is a humanized anti-fibroblast activation protein (FAP) antibody that binds to the cytolysin TAM470 (HY-148128) and has anti-tumor activity.
    TAM558 intermediate-5
  • HY-400316
    Exatecan intermediate 8
    Exatecan intermediate 8 is an intermediate for the synthesis of Exatecan (HY-13631). Exatecan (DX-8951) is a common toxin component in ADC preparation (ADC Cytotoxin) and an inhibitor of DNA topoisomerase I (IC50=2.2 μM).
    Exatecan intermediate 8
  • HY-46081
    Exatecan Intermediate 3
    Exatecan Intermediate 3 is the intermediate of Exatecan (HY-13631) And Exatecan (DX-8951) is a DNA topoisomerase I inhibitor with an IC50 value of 2.2 μM (0.975 μg/mL) that can be used in cancer research. Exatecan Intermediate 3 can be used to synthesize Antibody-Drug Conjugates (ADCs).
    Exatecan Intermediate 3
  • HY-13704R
    SN-38 (Standard)
    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).
    SN-38 (Standard)
  • HY-400688
    TAM558 intermediate-2
    TAM558 intermediate-24 is an intermediate in the synthesis of TAM558 (HY-148127).TAM558 is the payload molecule used in the synthesis of OMTX705.OMTX705 is a humanized anti-fibroblast activation protein (FAP) antibody that binds to the cytolysin TAM470 (HY-148128) and has anti-tumor activity.
    TAM558 intermediate-2
  • HY-402090
    SJG-136 intermediate-2
    SJG-136 intermediate-2 (compound 141) is an intermediate for synthesizing SJG-136. SJG-136 is a DNA cross-linking agent, with an XL50 of 45 nM for pBR322 DNA.
    SJG-136 intermediate-2
  • HY-19792S1
    Mertansine-d9
    Mertansine-d9 (DM1-d9) is deuterium labeled Mertansine. 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-d<sub>9</sub>
  • HY-79258
    Dov-Val-Dil-OH
    Dov-Val-Dil-OH is an ADC cytotoxin.
    Dov-Val-Dil-OH
  • HY-14519R
    Methotrexate (Standard)
    Methotrexate (Standard) is the analytical standard of Methotrexate. This product is intended for research and analytical applications. 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 (Standard)
  • HY-79255
    Fmoc-MMAF-OMe
    Fmoc-MMAF-OMe is an anticancer agent and tubulin polymerization inhibitor with an Fmoc protecting group. The active ingredient of Fmoc-MMAF-OMe, MMAF (HY-15579), is the cytotoxic (ADC Cytotoxin) component of classic antibody drug conjugates (ADCs).
    Fmoc-MMAF-OMe
  • HY-W744459
    DeBoc-Cabazitaxel
    DeBoc-Cabazitaxel is an ADC linker.
    DeBoc-Cabazitaxel
  • HY-160543
    Exatecan-amide-CH2-O-CH2-CH2-OH
    Exatecan-amide-CH2-O-CH2-CH2-OH (Compound 4) is a derivative of Exatecan (HY-13631). Exatecan-amide-CH2-O-CH2-CH2-OH can be used for the research of cell proliferative diseases such as cancer.
    Exatecan-amide-CH2-O-CH2-CH2-OH
  • HY-W654130
    Daunorubicin-13C,d3
    Daunorubicin-13C,d3 is 13C and deuterium labeled Daunorubicin. 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.
    Daunorubicin-<sup>13</sup>C,d<sub>3</sub>
  • HY-41070
    Taltobulin intermediate-8
    Taltobulin intermediate-8 is an intermediate in the synthesis of Taltobulin (HY-15584). Taltobulin is a common toxin component in ADC preparation (ADC Cytotoxin), and it is also a powerful tubulin (Microtubule/Tubulin) inhibitor. Taltobulin disrupts tubulin polymerization, induces mitotic arrest, and induces apoptosis.
    Taltobulin intermediate-8
  • HY-16560R
    Camptothecin (Standard)
    Camptothecin (Standard) (Campathecin (Standard)) is the analytical standard of Camptothecin (HY-16560). This product is intended for research and analytical applications. 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 (Standard)
Cat. No. Product Name / Synonyms Application Reactivity
ADC Cytotoxin Isoform Comparison

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