107480-21-7 17a-Aza-D-homoandrost-5-en-17-one, 3-(4-(4-(bis(2-chloroethyl)amino)phenyl)-1-oxobutoxy)-, (3beta)- 3-Hydroxy-13,17-seco-5-androsten-17-oic-13,17-lactam (4-(bis(2-chloroethyl)amino)phenyl)butyrate Hael-chlorambucil