(16-R)-3-Oxovobasan-17-oic acid methyl ester hydrochloride 16-Epivobasine 50720-31-5 Epi-16 vobasine chlorhydrate [French] Ochropamine chlorhydrate [French] Ochropamine hydrochloride Vobasan-17-oic acid, 3-oxo-, methyl ester, hydrochloride, (16-R)-