The molecule is an isoquinoline alkaloid that is 4,4a-dihydro-3H,6H-5,10b-ethanophenanthridin-3-one carrying additional hydroxy and methoxy substituents at positions 8 and 9 respectively (the 4aS,10bR-diastereomer). It has a role as a plant metabolite. It is an aromatic ether, an isoquinoline alkaloid, an organic heterotetracyclic compound, a member of phenols, an enone, a cyclic ketone, a bridged compound and a tertiary amino compound. It is a conjugate base of a (4aS,10bR)-noroxomaritidine(1+). It is an enantiomer of a (4aR,10bS)-noroxomaritidine.
(1R,10S)-5-hydroxy-4-methoxy-9-azatetracyclo[7.5.2.01,10.02,7]hexadeca-2,4,6,13-tetraen-12-one