英文别名4-(5-amino-1-methyl-1H-benzoimidazol-2-yl)-butyric acid isopropyl ester; 1H-Benzimidazole-2-butanoic acid, 5-amino-1-methyl-, 1-methylethyl ester; 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)-butyricacid isopropyl ester; Benzimidazole Impurity 1; 1-Methylethyl 5-amino-1-methyl-1H-benzimidazole-2-butanoate