Synonyms: 20a-Yohimbanium, 16b-carboxy-3,4-didehydro-18b-hydroxy-11,17a-dimethoxy-, methyl ester,3,4,5-trimethoxybenzoate (ester) (8CI); Reserpine, 3-dehydro- (6CI); Benzoicacid, 3,4,5-trimethoxy-, ester with 16b-carboxy-3,4-didehydro-18b-hydroxy-11,17a-dimethoxy-20a-yohimbanium (8CI); 3,4-Dehydroreserpine;3,4-Didehydroreserpine; 3-Dehydroreserpine