The molecule is the conjugate acid of (R)-N-methylcoclaurine arising from protonation of the tertiary amino group; major species at pH 7.3. It is a conjugate acid of a (R)-N-methylcoclaurine.
(1R)-1-[(4-hydroxyphenyl)methyl]-6-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium-7-ol