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CAS号: 666816-91-7 英文名称: Linagliptin Impurity D 英文同义词: LINAGLIPTIN-4;Linagliptin-4;Linagliptin Impurity 21;(R)-tert-butyl (1-(7-(but-2-yn-1-yl);3-methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tert-butoxycarbonylamino)piperidin-1-yl]xanthine;tert-butyl (R)-(1-(7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)carbamate;Carbamic acid,[(3R)-1-[7-(2-butynyl)-2,3,6,7-tetrahydro-3-methyl-2,6-dioxo-1H-purin-8-yl]-3-piperidinyl]-, 1,1-dimethylethyl ester;Linagliptin impurity 4/Tert-butyl (R)-(1-(7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)carbamate;Carbamic acid, [(3R)-1-[7-(2-butynyl)-2,3,6,7-tetrahydro-3-methyl-2,6-dioxo-1H-purin-8-yl]-3-piperidinyl]-, 1,1-dimethylethyl ester (9CI) 中文名称: 利格列汀杂质D 中文同义词: 利格列汀杂质D;利拉利汀杂质21;利格列汀杂质21 分子式: C20H28N6O4 分子量: 416.47 密度 : 1.32±0.1 g/cm3(Predicted) 酸度系数(pKa): 9.38±0.70(Predicted)