The molecule is a secondary ammonium ion that is the conjugate acid of (S)-norreticuline, resulting from the protonation of the secondary amino group. The major species at pH 7.3. It is a conjugate acid of a (S)-norreticuline.
(1S)-1-[(3-hydroxy-4-methoxyphenyl)methyl]-6-methoxy-1,2,3,4-tetrahydroisoquinolin-2-ium-7-ol