© 2008 Alexis Corporation
ALX-440-045 Revised 17-Jul-07
Methotrexate
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SYNONYMS (+)-Amethopterin
4-Amino-10-methylfolic acid
Methylaminopterin
MTX
PRODUCT LINE Cancer
PRODUCT CATEGORY Antitumor Agents (Enzyme Inhibitors)
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-440-045-M050   50 mg 25.00 USD Add To Cart
ALX-440-045-M100   100 mg 45.00 USD Add To Cart
ALX-440-045-M500   500 mg 135.00 USD Add To Cart
ALX-440-045-G001   1 g 240.00 USD Add To Cart
Product Specification
FORMULA: C20H22N8O5
MW: 454.5
CAS NUMBER: 59-05-2
MERCK INDEX: 14: 5985
PURITY: ≥98%
APPEARANCE: Yellow powder.
SOLUBILITY: Soluble in alkaline solution; insoluble in water, 100% ethanol or ether.
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C
HANDLING: Protect from light.
HAZARD: TOXIC. MAY BE CARCINOGENIC. MAY BE TERATOGENIC.

Product Description
Folic acid antagonist. Potent inhibitor of dihydrofolate reductase. Induces apoptosis. Inhibits DNA synthesis. Anticancer agent.
Product Specific Literature References
Immunosuppressive properties of methotrexate: apoptosis and clonal deletion of activated peripheral T cells: L. Genestier, et al.; J. Clin. Invest. 102, 322 (1998) Abstract
Methotrexate induces apoptotic cell death in human keratinocytes: M. Heenen, et al.; Arch. Dermatol. Res. 290, 240 (1998) Abstract
Activation-dependent lymphocyte apoptosis induced by methotrexate: R. Paillot, et al.; Transplant. Proc. 30, 2348 (1998) Abstract
Methotrexate inhibits the first committed step of purine biosynthesis in mitogen-stimulated human T-lymphocytes: a metabolic basis for efficacy in rheumatoid arthritis?: L.D. Fairbanks, et al.; Biochem. J. 342, 143 (1999) Abstract
Antiproliferative and antiinflammatory effects of methotrexate on cultured differentiating myeloid monocytic cells (THP-1) but not on synovial macrophages from patients with rheumatoid arthritis: M. Cutolo, et al.; J. Rheumatol. 27, 2551 (2000) Abstract
Mechanisms of action of methotrexate: L. Genestier, et al.; Immunopharmacology 47, 247 (2000) Abstract