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CAS号: 65897-46-3 英文名称: Desmethyl Piroxicam (Piroxicam Impurity B) 英文同义词: PiroxicaM IMpurity B;4-Hydroxy-N-(pyridin-2-yl)-2H-1,2-b;Desmethyl Piroxicam (Piroxicam Impurity B);4-Hydroxy-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxaMide 1,1-Dioxide;2H-1,2-Benzothiazine-3-carboxamide, 4-hydroxy-N-2-pyridinyl-, 1,1-dioxide;Imp. B (EP):4-Hydroxy-N-(pyridin-2-yl)-2H-1,2-benzothiazine-3-carboxamide1,1-Dioxide 中文名称: 吡罗昔康杂质 B 中文同义词: 吡罗昔康杂质B(EP) 标准品 分子式: C14H11N3O4S 分子量: 317.32 熔点 : 224℃ (decomposition) 密度 : 1.611±0.06 g/cm3(Predicted) 酸度系数(pKa): 4.50±1.00(Predicted)