The molecule is a tertiary ammonium ion resulting from the protonation of the tertiary amino group of 10-hydroxycoronaridine. The major species at pH 7.3. It is a conjugate acid of a 10-hydroxycoronaridine.
methyl (1S,15R,17S,18S)-17-ethyl-7-hydroxy-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4(9),5,7-tetraene-1-carboxylate