(-)-N,alpha-Dimethylcyclohexaneethylamine 6192-97-8 EINECS 228-245-0 Levopropilhexedrina [INN-Spanish] Levopropylhexedrine Levopropylhexedrine [INN] Levopropylhexedrinum [INN-Latin] Propylhexedrine l-form