2,3-Butanediol, 1,4-bis[(2-chloroethyl)amino]-, dihydrochloride (R*,R*)-(+-)- 2,3-Butanediol, 1,4-bis[(2-chloroethyl)amino]-, dihydrochloride DL- 2,3-Butanediol, dl-1,4-bis[(2-chloroethyl)amino]-, dihydrochloride 28069-01-4 MP 1416 NSC83290