• # LGM Pharma is a Azacitidine CAS# 320-67-2 API supplier distributor based in the USA. Inquire about DMF, cGMP, price, availability, samples, sourcing, purity and more.
  • # Questions? Call our customer API support number 1-(800)-881-8210.
  • # LGM Pharma offers this active ingredient but not the finished dosage forms.
  • Inquire about this product >>

Product Details:

  • Product Name: Azacitidine
  • CAS #: 320-67-2
  • Mode of Action:

    Azacitidine (5-azacytidine) is a chemical analogue of the cytosine nucleoside used in DNA and RNA. Azacitidine is thought to induce antineoplastic activity via two mechanisms; inhibition of DNA methyltransferase at low doses, causing hypomethylation of DNA, and direct cytotoxicity in abnormal hematopoietic cells in the bone marrow through its incorporation into DNA and RNA at high doses, resulting in cell death. As azacitidine is a ribonucleoside, it incoporates into RNA to a larger extent than into DNA. The incorporation into RNA leads to the dissembly of polyribosomes, defective methylation and acceptor function of transfer RNA, and inhibition of the production of protein. Its incorporation into DNA leads to a covalent binding with DNA methyltransferases, which prevents DNA synthesis and subsequent cytotoxicity.

  • Pharmacodynamics:

    Azacitidine is believed to exert its antineoplastic effects by causing hypomethylation of DNA and direct cytotoxicity on abnormal hematopoietic cells in the bone marrow. The concentration of azacitidine required for maximum inhibition of DNA methylation in vitro does not cause major suppression of DNA synthesis. Hypomethylation may restore normal function to genes that are critical for differentiation and proliferation. The cytotoxic effects of azacitidine cause the death of rapidly dividing cells, including cancer cells that are no longer responsive to normal growth control mechanisms. Non-proliferating cells are relatively insensitive to azacitidine. Upon uptake into cells, azacitidine is phosphorylated to 5-azacytidine monophosphate by uridine-cytidine kinase, then to diphosphate by pyrimidine monophosphate kinases and triphosphate by diphosphate kinases. 5-Azacitidine triphosphate is incorporated into RNA, leading to the disruption of nuclear and cytoplasmic RNA metabolism and inhibition of protein synthesis. 5-Azacytidine diphosphate is reduced to 5-aza-deoxycytidine diphosphate by ribonucleotide reductase. The resultant metabolite is phosphorylated to 5-azadeoxycitidine triphosphate by nucleoside diphosphate kinases. 5-azadeoxycitidine triphosphate is then incoporated into DNA, leading to inhibition of DNA synthesis. Azacitidine is most toxic during the S-phase of the cell cycle.

  • Metabolism:

    An in vitro study of azacitidine incubation in human liver fractions indicated that azacitidine may be metabolized by the liver. The potential of azacitidine to inhibit cytochrome P450 (CYP) enzymes is not known.

  • Toxicity:

    One case of overdose with azacitidine was reported during clinical trials. A patient experienced diarrhea, nausea, and vomiting after receiving a single IV dose of approximately 290 mg/m2, almost 4 times the recommended starting dose.

  • IUPAC: 4-amino-1-[(2R, 3R, 4S, 5R)-3, 4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1, 2-dihydro-1, 3, 5-triazin-2-one
  • PubChem: 9444
  • DrugBank: DB00928 (APRD00809)
  • Formula: C20H27NO4
  • Molecular Mass: 244.2047
  • Synonyms: 5 AZC Azacitidina [INN-Spanish] Azacitidinum [INN-Latin] Azacytidine
  • SMILES: NC1=NC(=O)N(C=N1)[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O
  • General Reference:

    1. Cihak A: Biological effects of 5-azacytidine in eukaryotes. Oncology. 1974;30(5):405-22. Pubmed
    2. Kaminskas E, Farrell AT, Wang YC, Sridhara R, Pazdur R: FDA drug approval summary: azacitidine (5-azacytidine, Vidaza) for injectable suspension. Oncologist. 2005 Mar;10(3):176-82. Pubmed
    3. Leone G, Voso MT, Teofili L, Lubbert M: Inhibitors of DNA methylation in the treatment of hematological malignancies and MDS. Clin Immunol. 2003 Oct;109(1):89-102. Pubmed
    4. Ghoshal K, Bai S: DNA methyltransferases as targets for cancer therapy. Drugs Today (Barc). 2007 Jun;43(6):395-422. Pubmed
    5. Silverman LR, Demakos EP, Peterson BL, Kornblith AB, Holland JC, Odchimar-Reissig R, Stone RM, Nelson D, Powell BL, DeCastro CM, Ellerton J, Larson RA, Schiffer CA, Holland JF: Randomized controlled trial of azacitidine in patients with the myelodysplastic syndrome: a study of the cancer and leukemia group B. J Clin Oncol. 2002 May 15;20(10):2429-40. Pubmed
    6. Silverman LR: Targeting hypomethylation of DNA to achieve cellular differentiation in myelodysplastic syndromes (MDS). Oncologist. 2001;6 Suppl 5:8-14. Pubmed
    7. Issa JP, Kantarjian H: Azacitidine. Nat Rev Drug Discov. 2005 May;Suppl:S6-7. Pubmed
    8. OêDwyer K, Maslak P: Azacitidine and the beginnings of therapeutic epigenetic modulation. Expert Opin Pharmacother. 2008 Aug;9(11):1981-6. Pubmed
    9. Siddiqui MA, Scott LJ: Azacitidine: in myelodysplastic syndromes. Drugs. 2005;65(13):1781-9; discussion 1790-1. Pubmed
    10. Abdulhaq H, Rossetti JM: The role of azacitidine in the treatment of myelodysplastic syndromes. Expert Opin Investig Drugs. 2007 Dec;16(12):1967-75. Pubmed
    11. Keating GM: Azacitidine: a review of its use in higher-risk myelodysplastic syndromes/acute myeloid leukaemia. Drugs. 2009;69(17):2501-18. doi: 10.2165/11202840-000000000-00000. Pubmed
    12. Sullivan M, Hahn K, Kolesar JM: Azacitidine: a novel agent for myelodysplastic syndromes. Am J Health Syst Pharm. 2005 Aug 1;62(15):1567-73. Pubmed
    13. Dapp MJ, Clouser CL, Patterson S, Mansky LM: 5-Azacytidine can induce lethal mutagenesis in human immunodeficiency virus type 1. J Virol. 2009 Nov;83(22):11950-8. Epub 2009 Sep 2. Pubmed

Products currently covered by valid US Patents are offered for R&D use in accordance with 35 USC 271(e)+A13(1). Any patent infringement and resulting liability is solely at buyer risk.

API’s From Quality Manufacturers:

  • Streamlined API supply towards initial research stages as well as larger quantities of cGMP material for clinical trials and product commercialization
  • Premium quality GMP certified and fully accredited API manufacturing plants


  • Technical packages as well as access to filed DMF,
    ASMF or CEP (subject to availability)
  • Regulatory and technical assistance towards any
    submission type based on specific customer requirements

LGM Pharma Acquires CDMO

On July 27, 2020, LGM Pharma announced its acquisition of the formulation development and drug product contract manufacturing business of Nexgen Pharma, Inc. As a result, you will notice our new logo and visuals throughout the website. We’re working on updates to reflect the exciting, expanded CDMO capabilities and services we now can offer you.

This website uses cookies. By using our site, you agree to our terms of service