Norgestrienone

This classification denotes a therapeutic estrogen with the molecular formula C20H22O2, a preparation that US FDA regulates as an active ingredient or moiety under Unique Ingredient Identifier 89386PYU9O, chemically known as 19-norpregna-4,9,11-trien-20-yn-3-one, 17-hydroxy-, (17-alpha)- (9ci) but generally known as norgestrienone, which bears US NIH Compound Identifier 13313. European Medicines Agency schedules Norgestrienone in its eXtended EudraVigilance Medicinal Product Dictionary or XEVMPD under Index SUB09372MIG. The term NORGESTRIENONE is an International Non-Proprietary Name or INN (see WHO INN reference publication, Volume 22, No. 10, 1968, List 8). World Health Organization schedules norgestrienone in its Anatomical Therapeutic Chemical (ATC) Classification. NORGESTRIENONE is scheduled in the U.S. International Trade Commission's Harmonized Tariff System (HTS) Pharmaceutical Appendix. Most nations schedule norgestrienone under HS 29372300 and SITC 54153. As of Q4 2014, NORGESTRIENONE remains the US FDA Preferred Term for this commodity. Norgestrienone bears US NLM identifiers UMLS ID C0028369 and NCI Concept Code C90949. SMILES: OC1(C2(C(C3C(=C4C(=CC(=O)CC4)CC3)C=C2)CC1)C)C#C.