The molecule is the conjugate acid of ecgonine methyl ester arising from protonation of the tertiary amino group; major species at pH 7.3. It has a role as a human metabolite. It is a conjugate acid of an ecgonine methyl ester.
methyl (1R,2R,3S,5S)-3-hydroxy-8-methyl-8-azoniabicyclo[3.2.1]octane-2-carboxylate