|Catalog||Product Name||CAS Number|
|Methotrexate (Amethopterin) disodium, an antimetabolite and antifolate agent, inhibits the dihydrofolate reductase, thereby preventing the conversion of folic acid into tetrahydrofolate, and inhibitin...||Inquiry|
|Tubulysin A is a novel antibiotic, which exhibits anti-microtubule, anti-mitotic, apoptosis inducer, anticancer, anti-angiogenic, and antiproliferative activity. Tubulysins show very high cytotoxic ac...||Inquiry|
|Paclitaxel is a compound with anti-tumor activity extracted from the Pacific yew tree Taxus brevifolia. Paclitaxel is a microtubule polymer stabilizer with IC50 of 0.1 pM in human endothelial cells.||Inquiry|
|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 k...||Inquiry|
|10-Deacetyl-7-xylosyl paclitaxel is a Paclitaxel derivative with improved pharmacological features and higher water solubility.||Inquiry|
|Hygrolidin is a 16-membered macrolide antibiotic produced by Streptomyces hygroscopicus D-1166. Hygrolidin has anti-fungus activity against Valsa ceratosperma. Hygrolidin induces p21 expression and ab...||Inquiry|
|Telomestatin is a very potent telomerase inhibitor and can be isolated from Streptomyces anulatus 3533-SV4. Telomestatin selectively facilitates the formation of intramolecular G-quadruplexes, in part...||Inquiry|
|AcLysValCit-PABC-DMAE-SW-163D is a drug-linker conjugates for ADC which consists of a natural bis-intercalator, SW-163D, conjugated via an AcLysValCitPABC-DMAE linker.||Inquiry|
|ε-Amanitin, a cyclic peptide isolated from a variety of mushroom species, potently binds to and inhibits the activity of RNA polymerase II.||Inquiry|
|Mal-PEG2-VCP-Eribulin consists the ADCs linker (Mal-PEG2-VCP) and Eribulin. Eribulin is a mechanistically unique microtubule inhibitor for cancer. Mal-PEG2-VCP-Eribulin is an Eribulin-based drug for a...||Inquiry|
|β-Amanitin is a cyclic peptide toxin in the poisonous Amanita phalloides mushroom. β-Amanitin inhibits eukaryotic RNA polymerase II and III. β-Amanitin inhibits protein synthesis. β-Amanitin can be us...||Inquiry|
|DGN549-C consists a cleavable ADC linker valine-alanine (va) and PBD dimer. DGN549 is a novel DNA-alkylating cytotoxic payload and can be used in the synthesis of antibody-drug conjugates (ADCs).||Inquiry|
|MC-Val-Cit-PAB-rifabutin is a drug-linker conjugate for ADC with potent antitumor activity by using rifabutin (an DNA-dependent RNA polymerase inhibitor), linked via the ADC linker MC-Val-Cit-PAB.||Inquiry|
|MC-Val-Cit-PAB-vinblastine is a drug-linker conjugate for ADC with potent antitumor activity by using vinblastine (an microtubule protein inhibitor), linked via the ADC linker MC-Val-Cit-PAB.||Inquiry|
|Vipivotide tetraxetan is a high potent inhibitor of prostate-specific membrane antigen (PSMA)(Ki of 0.37 nM).||Inquiry|
|Muscotoxin A is an ADC cytotoxin. Muscotoxin A is a cytotoxic lipopeptide that permeabilizes mammalian cell membranes and induces necrotic cell death.||Inquiry|
|MC-VC-PABC-DNA31 is a drug-linker conjugate for ADC with potent antitumor activity by using DNA31 (a potent RNA polymerase inhibitor), linked via the ADC linker MC-VC-PABC.||Inquiry|
|Puwainaphycin F, a cyanobacterial cyclic lipopeptide, is a moderate cytotoxin isolated from the soil cyanobacterium Cylindrospermum alatosporum C24/89. Puwainaphycin F causes necrotic cell death to ma...||Inquiry|
|Sandramycin ia a cyclic depsipeptide antibiotic isolated from cultured broth of a Nocardioides sp. Sandramycin is also a DNA intercalator that potently binds DNA and is an ADC cytotoxin. Sandramycin i...||Inquiry|
|Isofistularin-3 is a direct, DNA-competitive DNMT1 inhibitor, with an IC50 of 13.5 μM. Isofistularin-3, as a DNA demethylating agent, induces cell cycle arrest and sensitization to TRAIL in cancer cel...||Inquiry|
As a representative of the development direction of the new generation of antibody technology, antibody drug conjugates (ADCs) have high specificity of antibodies and high toxicity of cytotoxic drugs to tumors. Cytotoxic Agents play an anti-tumor role in ADCs, which can affect the expected efficacy of target tumors. Its chemical structure, coupling mode and coupling number also affect the biological activity of the antibody. In theory, cytotoxic substances such as chemotherapeutic drugs, toxins and radionuclides that have great killing effects on tumor cells can be used as cytotoxic molecules of ADCs.
The choice of cytotoxins is crucial for ADCs. The cytotoxin used for coupling must have clear mechanism of action, small molecular weight, high activity, and no immunogenicity, and they can still retain anti-tumor activity after chemically coupled to the antibody. At present, the mechanism of anticancer drugs used in clinic is mostly to interfere with or block the proliferation of cells. According to the mechanism, it can be roughly divided into four categories.
The selection of cytotoxic is very wide. In principle, compounds with high enough inhibitory activity against tumor cells can be used as coupling drugs. At present, the most cytotoxic used in ADCs are Auristatins, Maytansine and Calicheamicins. Majority of clinical research involving ADCs projects use tubulin inhibitors, and both subtoxoids have approved products on the market (Adcetris uses oristatin MMAE and Kadcyla uses maytansinoid DM1). Among them, Auristatin is dominating the market, accounting for more than 50% of ADC drugs under investigation.