产品介绍 溶于水、碱溶液和DMSO,难溶于醇。溶解度:12.2 g/L 水(20°C),2.9 g/L (20°C) 乙醇。 最大吸收波长(0.1mol/L盐酸中)265~266nm(ε7070)。中等毒,半数致死量(大鼠,经口)230mg/kg。有腐蚀性。
别名 5-氟尿嘧啶 ;5-氟脲嘧啶,5-氟-2,4(1H,3H)-嘧啶二酮;2,4-Dihydroxy-5-fluoropyrimidine 5-Fluoro-2,4(1H,3H)-pyrimidinedione 5-FU
生化机理
5-Fluorouracil is a potent antitumor agent that affects pyrimidine synthesis by inhibiting thymidylate synthetase thus depleting intracellular dTTP pools. 5-Fluorouracil is metabolized to ribonucleotides and deoxyribonucleotides, which can be incorporated into RNA and DNA. Treatment of cells with 5-Fluorouracil leads to an accumulation of cells in S-phase and has been shown to induce p53 dependent apoptosis.
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