morphinone morphinone morphinone is an opioid that is the intermediate when morphine is being converted to hydromorphone (trade name dilaudid). morphinone names iupac name (5α)-3-hydroxy-17-methyl-7,8-didehydro-4,5-epoxy-morphinan-6-one identifiers cas number 467-02-7 n 3d model (jsmol) interactive image chebi chebi:16315 y chembl chembl255467 y chemspider 4573586 y echa infocard 100.006.714 kegg c01735 y pubchem cid 5459823 unii 28mbk63maw y comptox dashboard (epa) dtxsid50196907 inchi inchi=1s/c17h17no3/c1-18-7-6-17-10-3-5-13(20)16(17)21-15-12(19)4-2-9(14(15)17)8-11(10)18/h2-5,10-11,16,19h,6-8h2,1h3/t10-,11+,16-,17-/m0/s1 ykey: pfbsoanqddtngj-ynhqpcigsa-n yinchi=1/c17h17no3/c1-18-7-6-17-10-3-5-13(20)16(17)21-15-12(19)4-2-9(14(15)17)8-11(10)18/h2-5,10-11,16,19h,6-8h2,1h3/t10-,11+,16-,17-/m0/s1key: pfbsoanqddtngj-ynhqpcigbo smiles o=c1\c=c/54n(cc52c3c(o12)c(o)ccc3c4)c properties chemical formula c17h17no3 molar mass 283.327 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n verify (what is yn ?) infobox references chemical structure morphinone can be described as the ketone of morphine. legal status morphinone itself is an active opioid, though its potency is closer to codeine than morphine. it is, however, an important precursor and would fall under the purview of the controlled substances act within the united states. its legal status in other countries varies.