Synonyms: 20a-Yohimban-16b-carboxylic acid, 17a-hydroxy-, methyl ester,monohydrochloride (8CI); Yohimban-16-carboxylic acid, 17-hydroxy-, methylester, monohydrochloride, (16b,17a,20a)- (9CI); NSC 407307; Rauwolscine hydrochloride; a-Yohimbine hydrochloride