Synonyms: Sitsirikine sulfate;17,18-Secoyohimban-16-carboxylic acid, 18,19-didehydro-17-hydroxy-, methyl ester, sulfate;AC1MHFIU;LS-144743;66634-25-1;methyl (2R)-2-[(2S,3R,12bS)-3-ethenyl-1,2,3,4,6,7,12,12b-octahydroindolo[2,3-a]quinolizin-2-yl]-3-hydroxypropanoate; sulfuric acid