英文别名1H-Benzimidazole-2-butanoic acid, 5-[(2-chloroethyl)(2-hydroxyethyl)amino]-1-methyl-, 1-methylethyl ester; propan-2-yl 4-[5-[2-chloroethyl(2-hydroxyethyl)amino]-1-methylbenzimidazol-2-yl]butanoate; 5-[(2-Chloroethyl)(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazole-2-butanoic Acid 1-Methylethyl Ester; Bendamustine Isopropyl Ester Impurity; Bendamustine Impurity 17 
