英文别名4-[(Methylsulfonyl)oxy]butyl acetate; 1,4-Butanediol, acetate methanesulfonate; 1-Acetate 4-Methanesulfonate 1,4-Butanediol; 4-((Methylsulfonyl)oxy)butyl Acetate, Busulfan Impurity; Methansulfonsaeure-(4-acetoxybutylester); Busulfan O-Acetyl Analog 
