甲氨蝶呤
Methotrexate
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基本信息
中文名称甲氨蝶呤
英文名称 Methotrexate
CAS号59-05-2
分子式C20H22N8O5
分子量454.44
外观Light yellow to yellow powder
储存条件Dry, dark and at 0 - 4 ℃ for short term (days to weeks) or -20 ℃ for long term (months to years).
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Methotrexate (MTX; alphamethopterin; amethopterin; methylaminopterin; CL-14377; NCIC04671; WR19039; NCI-C04671) is an FDA approved antineoplastic and immunosuppressant drug that belongs to the antimetabolite and antifolate class of drugs. It acts by inhibiting the metabolism of folic acid in activated peripheral T cells. Specifically, methotrexate binds to and inhibits the enzyme dihydrofolate reductase, resulting in inhibition of purine nucleotide and thymidylate synthesis and, subsequently, inhibition of DNA and RNA syntheses. Methotrexate (Amethopterin) is the disease-modifying antirheumatic drug (DMARD) of first choice for the treatment of RA in most countries worldwide. Methotrexate is an antineoplastic agent used to fight a number of different cancers, such as acute lymphoblastic leukemia and solid cancers.

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甲氨蝶呤