The molecule is an organic cation that is the conjugate acid of ecgonone methyl ester arising from protonation of the tertiary amino group; major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of an ecgonone methyl ester.
methyl (1R,2R,5S)-8-methyl-3-oxo-8-azoniabicyclo[3.2.1]octane-2-carboxylate