The molecule is an indole alkaloid cation that is the conjugate acid of 3-hydroxy-16-methoxy-2,3-dihydrotabersonine, obtained by protonation of the tertiary amino function; major species at pH 7.3. It is a conjugate acid of a 3-hydroxy-16-methoxy-2,3-dihydrotabersonine.
methyl (1S,9R,10R,12R,19S)-12-ethyl-10-hydroxy-5-methoxy-8-aza-16-azoniapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2(7),3,5,13-tetraene-10-carboxylate