20.alpha.-Yohimban-16.beta.-carboxylic acid, 17.alpha.-hydroxy-, methyl ester, monohydrochloride 6211-32-1 FAUWOLSCINE, HYDROCHLORIDE NSC407307 Yohimban-16-carboxylic acid, 17-hydroxy-, methyl ester, monohydrochloride, (16.beta.,17.alpha.,20.alpha.)-