The molecule is an organic cation obtained by protonation of the tertiary amino group of (4aS,10bR)-noroxomaritidine; major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a (4aS,10bR)-noroxomaritidine. It is an enantiomer of a (4aR,10bS)-noroxomaritidine(1+).
(1R,10S)-5-hydroxy-4-methoxy-9-azoniatetracyclo[7.5.2.01,10.02,7]hexadeca-2,4,6,13-tetraen-12-one