(-)-Methylephedrine hydrochloride (R-(R*,S*))-alpha-(1-(Dimethylamino)ethyl)benzenemethanol hydrochloride 38455-90-2 Benzenemethanol, alpha-(1-(dimethylamino)ethyl)-, hydrochloride, (R-(R*,S*))- EINECS 253-947-9 Methy F N-Methylephedrine hydrochloride NSC 42289 l-Erythro-methylephedrine hydrochloride l-Methylephedrine hydrochloride