299-12-7 9H-Purine, 6-(o-chlorobenzylthio)-9-(2-chloroethyl)- 9H-Purine, 6-[(o-chlorobenzyl)thio]-9-(2-chloroethyl)- 9H-Purine, 9-(2-chloroethyl)-6-[[(2-chlorophenyl)methyl]thio]- BC 77 NSC58906