Synonyms: 3b,20a-Yohimban-16b-carboxylic acid, 18b-hydroxy-11,17a-dimethoxy-, methyl ester,4-hydroxy-3,5-dimethoxybenzoate (ester) ethyl carbonate (ester) (8CI); Reserpicacid, methyl ester, ester with syringic acid, ethyl carbonate (6CI);Carbethoxysyringoyl methylreserpate; Isotense; Londomin; Methylcarbethoxysyringoyl reserpate; Methyl reserpate ester of syringic acid ethylcarbonate; NSC 77030; Raunova; Seniramin; Singoserp; Siringina; Su 3118;Syringic acid ethyl carbonate ester with methyl reserpate; Syringopine;Syrosingopin; Syrosingopine