Synonyms: Ethanesulfonicacid, 2-[[2-[bis(2-chloroethyl)amino]tetrahydro-2H-1,3,2-oxazaphosphorin-4-yl]thio]-,P-oxide, cis-(?à)-;2H-1,3,2-Oxazaphosphorine, ethanesulfonic acid deriv.;Ethanesulfonic acid,2-[[2-[bis(2-chloroethyl)amino]tetrahydro-2-oxido-2H-1,3,2-oxazaphosphorin-4-yl]thio]-,cis-;Mafosfamid;Mafosfamide;Z 7557;cis-Mafosfamide;