(3beta,19alpha,20alpha)-16,17-Didehydro-10,11-dimethoxy-19-methyloxayohimban-16-carboxylic acid 84824-88-4 EINECS 284-240-3 Oxayohimban-16-carboxylic acid, 16,17-didehydro-10,11-dimethoxy-19-methyl-, monohydrochloride, (3beta,19alpha,20alpha)- Reserpilinic acid hydrochloride