17a-Aza-D-homoandrostan-17-one, 3-(4-(4-(bis(2-chloroethyl)amino)phenyl)-1-oxobutoxy)-, (3beta,5alpha)- 3-Hydroxy-13,17-secoandrostan-17-oic-13,17-lactam (4-(bis(2-chloroethyl)amino)phenyl)butyrate 68426-41-5 Hsal-chlorambucil