has role has role is conjugate base of oripavine(1+) morphinane alkaloid ether organic hydroxy compound opioid analgesic organic heteropentacyclic compound tertiary amino compound bacterial xenobiotic metabolite oripavine 6,7,8,14-tetradehydro-4,5alpha-epoxy-6-methoxy-17-methyl-morphinan-3-ol 3-O-demethylthebaine (5alpha)-6,7,8,14-tetradehydro-4,5-epoxy-6-methoxy-17-methylmorphinan-3-ol chebi_ontology A morphinane alkaloid with formula C<small>₁₈</small>H<small>₁₉</small>NO<small>₃</small>. It is the major metabolite of thebaine. oripavine CHEBI:7782