The molecule is the conjugate acid of (S)-3'-hydroxy-N-methylcoclaurine; major species at pH 7.3. It is an organic cation and an ammonium ion derivative. It is a conjugate acid of a (S)-3'-hydroxy-N-methylcoclaurine.
4-[[(1S)-7-hydroxy-6-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium-1-yl]methyl]benzene-1,2-diol