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CAS号: 31055-19-3 英文名称: ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate 英文同义词: Allopurinol EP Imp E;Allopurinol Related CoMpound E;ethyl 5-forMaMido-1H-pyrazole-4-carboxylate;ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate;1H-Pyrazole-4-carboxylic acid, 3-(formylamino)-, ethyl ester;Allopurinol EP Impurity E（Allopurinol USP Related Compound E）;Allopurinol EP Impurity E or Allopurinol USP Related Compound E;Allopurinol Impurity 5(Allopurinol EP Impurity E)(Allopurinol USP Related Compound E );Allopurinol Related Compound E (25 mg) (ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate) 中文名称: 别嘌醇相关物质E 中文同义词: 别嘌醇杂E;别嘌醇杂质5;别嘌醇杂质E;别嘌醇相关物质E;别嘌呤醇EP杂质E;别嘌醇欧洲药典杂质E;别嘌呤醇杂质E(EP);别嘌醇相关物质E USP标准品;别嘌呤醇相关化合物E(USP) 分子式: C7H9N3O3 分子量: 183.16 熔点 : 192.5-193.5 °C(Solv: ethanol (64-17-5)) 沸点 : 483.2±30.0 °C(Predicted) 密度 : 1.385±0.06 g/cm3(Predicted) 酸度系数(pKa): 10.18±0.50(Predicted) 形态: neat 海关编码 : 2933199050