Synonyms: Serpentine;(19|A)-16-(methoxycarbonyl)-19-methyl-3,4,5,6,16,17-hexadehydro-18-oxayohimban-4-ium;604-81-9;Serpentine (VAN);AC1L2JRY;AC1Q5YLO;3,4,5,6-Tetradehydroajmalicine;KST-1A6435;EINECS 242-570-5;131-07-7 (hydroxide inner salt);AR-1A0705;ZINC05752353;NSC 407301;18786-24-8;55322-91-3;58782-36-8 (hydrogen tartrate[1:1] salt);(19 alpha)-3,4,5,6,16,17-Hexadehydro-16-(methoxycarbonyl)-19-methyloxayohimbanium;Oxayohimbanium, 3,4,5,6,16,17-hexadehydro-16-(methoxycarbonyl)-19-methyl-, (19.alpha.)-;3,4,5,6,16,17-Hexadehydro-16-(methoxycarbonyl)-19alpha-methyl-18-oxayohimbanium (inneres salz);Oxayohimbanium, 3,4,5,6,16,17-hexadehydro-16-(methoxycarbonyl)-19-methyl-, (19alpha)- (9CI)