1,4-Bis(methanesulfonyloxy)butane 1,4-Bis[methanesulfonoxy]butane 1,4-Butanediol dimethanesulfonate 1,4-Butanediol dimethylsulfonate 1,4-Butanediol, dimethanesulfonate 1,4-Dimesyloxybutane 1,4-Dimethanesulfonoxybutane 1,4-Dimethanesulfonyloxybutane 1,4-Dimethylsulfonoxybutane 1,4-Dimethylsulfonyloxybutane 2041 C. B. 55-98-1 AN 33501 Busulfan Busulphan Buzulfan C.B. 2041 CB 2041 Citosulfan G.T. 41 GT 2041 GT 41 Leucosulfan MYLERAN Mablin Methanesulfonic acid, tetramethylene ester Mielevcin Mielosan Mielucin Milecitan Mileran Misulban Mitostan Myeloleukon Myelosan Mylecytan NCI-C01592 NSC 750 NSC-750 NSC-750sulphabutin NSC750 Sulfabutin Sulphabutin Tetramethylene bis[methanesulfonate] Tetramethylene dimethane sulfonate WLN: WS1&O4OSW1 X 149