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-14519S
    Methotrexate-d3
    		≥99.0%
    Methotrexate-d3 (Amethopterin-d3) is the deuterium labeled Methotrexate. 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)[1][2][3].
    Methotrexate-d<sub>3</sub>
  • HY-14648G
    Dexamethasone (GMP)
    Dexamethasone (Hexadecadrol) (GMP) is Dexamethasone (HY-14648) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. Dexamethasone is an agonist of glucocorticoid receptor.
    Dexamethasone (GMP)
  • HY-132164
    Gly-7-MAD-MDCPT
    Gly-7-MAD-MDCPT (compound 4b) is an anticancer agent. Gly-7-MAD-MDCPT is a Camptothecin (HY-16560) compound, it shows cytotoxicity to various cancer cells with IC50 values of 10-1000 nM.
    Gly-7-MAD-MDCPT
  • HY-145397S
    (4-NH2)-Exatecan-d5
    		98.62%
    (4-NH2)-Exatecan-d5 is a deuterated labeled (4-NH2)-Exatecan. (4-NH2)-Exatecan (compound A), a topoisomerase inhibitor, is a derivative of Exatecan. (4-NH2)-Exatecan can be used in the synthesis of antibody-drug conjugates (ADCs).
    (4-NH2)-Exatecan-d5
  • HY-12454S
    DM4-d6
    		99.11%
    DM4-d6 is deuterium labeled DM4. DM4 is is an antitubulin agent that inhibit cell division. DM4 can be used in the preparation of antibody agent conjugate.
    DM4-d<sub>6</sub>
  • HY-N7053
    Tubulysin M
    		98.74%
    Tubulysin M is a highly cytotoxic anti-microtubule toxin (anti-microtubule toxins) that is synthesized as an ADC cytotoxin (ADC Cytotoxin). Tubulysin M can be isolated from the myxobacteria Archangium geophyra and Angiococcus disciformis. Tubulysin M displays extremely potent cytotoxic activity in mammalian cells, including multidrug-resistant cell lines, with IC50 values in the low nanomolar range. Tubulysin M inhibits microtubule/tubulin polymerization and leads to cell cycle arrest and apoptosis.
    Tubulysin M
  • HY-148819
    NH2-bicyclo[1.1.1]pentane-7-MAD-MDCPT
    		98.71%
    NH2-bicyclo[1.1.1]pentane-7-MAD-MDCPT (compound I) is a topoisomerase I inhibitor, which can be delivered to cells through conjugated antibody targeting, and has good ADC activity in vivo and in vitro.
    NH2-bicyclo[1.1.1]pentane-7-MAD-MDCPT
  • HY-156225
    MMAF-OtBu
    MMAF-OtBu (Example 2) is a modified MMAF (HY-15579 ). MMAF-OtBu can be used for synthesis of ADCs.
    MMAF-OtBu
  • HY-132160
    7-Aminomethyl-10-methyl-11-fluoro camptothecin
    		99.30%
    7-Aminomethyl-10-methyl-11-fluoro camptothecin is a cytotoxin of MC-AAA-NHCH2OCH2COO-7-aminomethyl-10-methyl-11-fluoro camptothecin (HY-132158). 7-Aminomethyl-10-methyl-11-fluoro camptothecin can be used for the synthesis of camptothecin antibody-drug conjugate (ADC).
    7-Aminomethyl-10-methyl-11-fluoro camptothecin
  • HY-153185
    Decyclohexanamine-Exatecan
    		98.38%
    Decyclohexanamine-Exatecan is a Camptothecin derivative, compound a, extracted from patent WO2020219287 A1.
    Decyclohexanamine-Exatecan
  • HY-13631M
    Gly-Gly-Phe-Gly-NH-O-CO-Exatecan
    Gly-Gly-Phe-Gly-NH-O-CO-Exatecan is an ADC cytotoxin.
    Gly-Gly-Phe-Gly-NH-O-CO-Exatecan
  • HY-156756S
    7-Hydroxymethyl-10,11-MDCPT-d5
    		98.03%
    7-Hydroxymethyl-10,11-MDCPT-d5 is deuterium labeled 7-Hydroxymethyl-10,11-MDCPT, which is a is a payload that can be used for ADC synthesis.
    7-Hydroxymethyl-10,11-MDCPT-d<sub>5</sub>
  • HY-48878
    Exatecan analog 36
    		98.71%
    Exatecan analog 36 is a analog 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 analog 36
  • HY-W021377A
    Exatecan Intermediate 2 hydrochloride
    		99.94%
    Exatecan Intermediate 2 hydrochloride (compound B) is an intermediate of Exatecan (DX-8951, HY-13631). Exatecan is an anticancer agent belonging to the class of camptothecin analogs. Exatecan interferes with the proliferation and division of tumor cells by interacting with DNA, thereby inhibiting tumor growth. Exatecan is primarily used for research of a variety of cancers including ovarian, lung and breast cancers.
    Exatecan Intermediate 2 hydrochloride
  • HY-43565
    Exatecan intermediate 9
    		99.80%
    Exatecan intermediate 9 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 9
  • HY-W021377B
    Exatecan Intermediate 4
    		98.90%
    Exatecan Intermediate 4 (compound B) is an intermediate of Exatecan (DX-8951, HY-13631). Exatecan is an anticancer agent belonging to the class of camptothecin analogs. Exatecan interferes with the proliferation and division of tumor cells by interacting with DNA, thereby inhibiting tumor growth. Exatecan is primarily used for research of a variety of cancers including ovarian, lung and breast cancers.
    Exatecan Intermediate 4
  • HY-78913
    Monomethyl auristatin E intermediate-14
    		Control 98.55%
    Monomethyl auristatin E intermediate-14 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-14
  • HY-12522S
    PF-06380101-d8
    		99.37%
    PF-06380101-d8 is a deuterium labeled PF-06380101. PF-06380101, an Auristatin microtubule inhibitor, is a cytotoxic Dolastatin 10 analogue[1].
    PF-06380101-d<sub>8</sub>
  • HY-128995AS
    Glycyl-Exatecan-d5 hydrochloride
    Glycyl-Exatecan-d5 (hydrochloride) is deuterium labeled Glycyl-Exatecan.
    Glycyl-Exatecan-d<sub>5</sub> hydrochloride
  • HY-129356A
    (S)-Seco-Duocarmycin SA
    		≥99.0%
    (S)-Seco-Duocarmycin SA is a DNA alkylator, cytotoxic to cancer cells, and acts as a ADC cytotoxin for antibody-drug conjugates.
    (S)-Seco-Duocarmycin SA
Cat. No. Product Name / Synonyms Application Reactivity
ADC Cytotoxin Isoform Comparison

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