Synonyms: 1,2-Benzenediol,4-(2-amino-1-hydroxypropyl)-, [R-(R*,S*)]-; Benzyl alcohol, a-(1-aminoethyl)-3,4-dihydroxy-,erythro-(-)- (8CI); l-Norephedrine, 3,4-dihydroxy- (6CI); (-)-Cobefrin;(-)-Nordefrin; (-)-erythro-a-Methylnoradrenaline; (-)-a-Methylnoradrenaline; (1R,2S)-(-)-3,4-Dihydroxynorephedrine;4-((1R,2S)-2-Amino-1-hydroxypropyl)benzene-1,2-diol; BA 2818; Corbadrine;D-(-)-Cobefrin; L-a-Methylnoradrenaline; Levonordefrin; Neo-cobefrin; l-Cobefrin; l-a-(1-Aminoethyl)-3,4-dihydroxybenzylalcohol