17-Hydroxy-3-aza-A-homo-4-androsten-4-one (4-(bis(2-chloroethyl)amino)phenyl)butyrate 3-Aza-A-homoandrost-4a-en-4-one, 17-(4-(4-(bis(2-chloroethyl)amino)phenyl)-1-oxobutoxy)-, (17beta)- 99876-94-5 Haha-chlorambucil NSC 622556