Norvinisterone

Norvinisterone
Clinical data
Trade names	Neoprogestin, Nor-Progestelea
Other names	Vinylnortestosterone; SC-4641; 17α-Vinyl-19-nortestosterone; 17α-Vinylestr-4-en-17β-ol-3-one
Routes of; administration	By mouth
Drug class	Progestogen; Progestin; Androgen; Anabolic steroid
ATC code	None;
Identifiers
	IUPAC name (8R,9S,10R,13S,14S,17R)-17-ethenyl-17-hydroxy-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one;
CAS Number	6795-60-4;
PubChem CID	65588;
ChemSpider	59030;
UNII	7Q843V12Q0;
CompTox Dashboard (EPA)	DTXSID501016506 ;
Chemical and physical data
Formula	C20H28O2
Molar mass	300.442 g·mol−1
3D model (JSmol)	Interactive image;
Melting point	169 to 171 °C (336 to 340 °F)
	SMILES O=C4\C=C2/[C@@H]([C@H]1CC[C@@]3([C@](O)(\C=C)CC[C@H]3[C@@H]1CC2)C)CC4;
	InChI InChI=1S/C20H28O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h3,12,15-18,22H,1,4-11H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1; Key:VOJYZDFYEHKHAP-XGXHKTLJSA-N;

Norvinisterone, sold under the brand names Neoprogestin and Nor-Progestelea, is a progestin and androgen/anabolic steroid (AAS) medication which was used in Europe but is now no longer marketed. It is taken by mouth.

Norvinisterone is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone. It has androgenic activity.

Norvinisterone was synthesized in 1953. It is no longer available.