75847-67-5 BW 65-54 BW-65-54 Benzenemethanol, 3,4-dichloro-alpha-(1-((1,1-dimethylethyl)amino)ethyl)-, (R*,S*)-(+-)- DL-Erythro-alpha-(3,4-dichlorophenyl)-beta-(t-butylamino)propanol