L-Alanine, 3-(p-[bis(2-chloroethyl)amino]benzylthio)- L-Alanine, 3-[p-[bis(2-chloroethyl)amino]benzylthio]- L-Cysteine, S-[[4-[bis(2-chloroethyl)amino]phenyl]methyl]- MP 848 NSC57769