norlevorphanol norlevorphanol norlevorphanol is an opioid analgesic of the morphinan family that was never marketed. it is the levo-isomer of 3-hydroxymorphinan (morphinan-3-ol). norlevorphanol is a schedule i narcotic controlled substance in the united states with an acscn of 9634 and in 2014 it had an annual aggregate manufacturing quota of 52 grams. it is used as the hydrobromide (free base conversion ratio 0.750) and hydrochloride (0.870). norlevorphanolclinical datapregnancycategory ? routes ofadministration?atc codenonelegal statuslegal status ca: schedule i de: anlage i (authorized scientific use only) identifiers iupac name (–)-morphinan-3-ol cas number1531-12-0pubchem cid519103chemspider16735936uniiil94262n7kcomptox dashboard (epa)dtxsid701018239 echa infocard100.014.761 chemical and physical dataformulac16h21nomolar mass243.350 g·mol−1