The molecule is an ammonium ion derivative resulting from the protonation of the tertiary amino group of (-)-coronaridine. It is a conjugate acid of a (-)-coronaridine.
methyl (1S,15R,17S,18S)-17-ethyl-3-aza-13-azoniapentacyclo[13.3.1.02,10.04,9.013,18]nonadeca-2(10),4,6,8-tetraene-1-carboxylate