((Z)-NORELGESTROMIN)

Chemical FDA Substance Registry (openFDA)

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Chemical Identification

CAS Number	`74183-54-3`
INCI Name	(3Z,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-3-hydroxyimino-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-ol
PubChem CID	6537152
Molecular Formula	`C21H29NO2`
InChIKey	`InChI=1S/C21H29NO2/c1-3-20-`
SMILES	`CC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C/C(=N\O)/CC[C@H]34`

Known Aliases (7)

Common Name

17-DEACETYLNORGESTIMATE, (Z)- NORELGESTROMIN, (Z)- NORGESTIMATE IMPURITY D [EP IMPURITY] SYN-NORELGESTROMIN (Z)-17-DEACETYLNORGESTIMATE

Scientific Name

18,19-DINORPREGN-4-EN-20-YN-3-ONE, 13-ETHYL-17-HYDROXY-, OXIME, (3Z,17.ALPHA.)- (3Z)-13.BETA.-ETHYL-3-(HYDROXYIMINO)-18,19-DINOR-17.ALPHA.-PREGN-4-EN-20-YN-17-OL

Data Sources (1)

Source	Source ID	Name in Source	Properties
FDA Substance Registry (openFDA)	`87KQN94RHX`	((Z)-NORELGESTROMIN)	CAS: 74183-54-3 PUBCHEM: 6537152 FDA UNII: 87KQN94RHX

Record Info

ID	`TzJfa4wbHo57QR9uoQ7WX6`
Created	April 10, 2026, 10:05 p.m.
Modified	April 10, 2026, 11:07 p.m.
Enriched	April 11, 2026, 12:09 a.m.
Data Source	FDA Substance Registry (openFDA)