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

ADC Cytotoxin

ADC 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 payload. The payload is the most important component as it determines the potency to kill cancer cells of an ADC.

There are many payloads 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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-45157
    Exatecan Intermediate 7
    99.24%
    Exatecan Intermediate 7 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 7 can be used to synthesize Antibody-Drug Conjugates (ADCs).
    Exatecan Intermediate 7
  • 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).
    Methotrexate-d<sub>3</sub>
  • HY-130080
    DM3
    DM3 (Maytansinoid DM3), a Maytansine (HY-13674) analog bearing disulfide or thiol groups, and is a tubulin inhibitor. DM3 a cytotoxic moiety of antibody-drug conjugates (ADCs).
    DM3
  • 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-156849
    Exatecan-methylacetamide-OH
    Exatecan-methylacetamide-OH (compound 6) is a Exatecan derivative with anticancer effects. Exatecan-methylacetamide-OH is an ADC cytotoxin that can be used to synthesize Antibody-Drug Conjugates (ADCs) (CN112125915A; compound 6).
    Exatecan-methylacetamide-OH
  • 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-150401
    Exatecan-amide-cyclopropanol
    98.57%
    Exatecan-amide-cyclopropanol (compound 1) is a anticancer agent. Exatecan-amide-cyclopropanol shows anti-proliferation activity against SK-BR-3 and U87 cells, with IC50 values of 0.12 and 0.23 nM, respectively.
    Exatecan-amide-cyclopropanol
  • HY-77572
    7-Epi 10-desacetyl paclitaxel
    99.76%
    7-Epi 10-desacetyl paclitaxel (7-epi-10-deacetyltaxol), a taxol derivative, exhibits cytotoxicity against HeLa cells with an IC50 of 85 μM.
    7-Epi 10-desacetyl paclitaxel
  • HY-120574
    TH1338
    98.77%
    TH1338 (compound 3b), an orally active camptothecin derivative and a potent chemotherapeutic agent for cancer, demonstrates excellent cytotoxic potency against human tumor cell lines in vitro. TH1338 (compound 3b) possesses significant brain penetration, favorable efflux pump properties, and hematological toxicity profile.
    TH1338
  • HY-14648AR
    Dexamethasone acetate (Standard)
    Dexamethasone acetate (Standard) is the analytical standard of Dexamethasone acetate. This product is intended for research and analytical applications. Dexamethasone acetate (Dexamethasone 21-acetate) is a glucocorticoid receptor agonist. Dexamethasone also significantly decreases CD11b, CD18, and CD62L expression on neutrophils, and CD11b and CD18 expression on monocytes. Dexamethasone is highly effective in the control of COVID-19 infection. Dexamethasone inhibits production of exosomes containing inflammatory microRNA-155 in lipopolysaccharide-induced macrophage inflammatory responses.
    Dexamethasone acetate (Standard)
  • HY-160945
    NMT-IN-7
    98.75%
    NMT-IN-7 is a N-myristoyl transferase (NMT) inhibitor, with IC50s of 2.1 nM for HsNMT1M, 0.6 nM for SU-DHL-10 cell. NMT-IN-7 can be used as a ADC cytotoxin.
    NMT-IN-7
  • 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-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-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-148128
    TAM470
    98.53%
    TAM470 is a novel cytolysin, inhibiting tubulin polymerization and microtubule depolymerization. TAM470 can be used in the synthesis of OMTX705 as payload molecule, OMTX705 is a novel FAP-targeting antibody-drug conjugates (ADCs) with antitumor activity.
    TAM470
  • 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-103688
    N-Ac-γ-Calicheamicin-AcBut-NHS ester
    AcBut-N-Ac-γ-Calicheamicin is an ADC cytotoxic payload that induces cell cycle arrest and apoptosis by causing DNA double-strand breaks. AcBut-N-Ac-γ-Calicheamicin is primarily used in the synthesis of antibody-drug conjugates (ADC) and holds promise for research in the field of cancer, including acute lymphoblastic leukemia (ALL) and other hematological malignancies.
    N-Ac-γ-Calicheamicin-AcBut-NHS ester
  • HY-156225
    MMAF-OtBu
    99.83%
    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
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