(19E)-3,4,5,6-tetradehydrocoryn-19-en-4-ium-1-id-17-ol 1H-indolo[2,3-a]quinolizin-5-ium, 3-ethylidene-2,3,4,12-tetrahydro-2-(2-hydroxyethyl)-, inner salt, (2R,3E)- 3,4,5,6-Tetradehydrogeissoschizol InChI=1/C19H20N2O/c1-2-13-12-21-9-7-16-15-5-3-4-6-17(15)20-19(16)18(21)11-14(13)8-10-22/h2-7,9,14,22H,8,10-12H2,1H3/b13-2-/t14-/m0/s