2,3-Butanediol, 1,4-bis[(2-chloroethyl)amino]-, dihydrochloride, (R*,S*)- 2,3-Butanediol, 1,4-bis[(2-dichloroethyl)amino]-, dihydrochloride-, meso- 2,3-Butanediol, meso-1,4-bis(2-chloroethylamino)-, dihydrochloride 28069-00-3 NSC 39073 NSC39073