Algestone acetonide

Algestone acetonide
Clinical data
Other names	W-3395; Alfasone acetonide; Alphasone acetonide; Algestone 16α,17α-acetonide; 16α,17α-Isopropylidenedioxyprogesterone; 16α,17α-(Isopropylidenedioxy)pregn-4-ene-3,20-dione
Drug class	Progestin; Progestogen
Identifiers
	IUPAC name (1R,2S,4R,8S,9S,12S,13R)-8-acetyl-6,6,9,13-tetramethyl-5,7-dioxapentacyclo[10.8.0.02,9.04,8.013,18]icos-17-en-16-one;
CAS Number	4968-09-6;
PubChem CID	11740874;
ChemSpider	9915579;
UNII	WXD8I4Y1IH;
KEGG	D02808;
ChEBI	CHEBI:49320;
ChEMBL	ChEMBL2105960;
CompTox Dashboard (EPA)	DTXSID80964338 ;
ECHA InfoCard	100.023.280
Chemical and physical data
Formula	C24H34O4
Molar mass	386.532 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES CC(=O)[C@@]12[C@@H](C[C@@H]3[C@@]1(CC[C@H]4[C@H]3CCC5=CC(=O)CC[C@]45C)C)OC(O2)(C)C;
	InChI InChI=1S/C24H34O4/c1-14(25)24-20(27-21(2,3)28-24)13-19-17-7-6-15-12-16(26)8-10-22(15,4)18(17)9-11-23(19,24)5/h12,17-20H,6-11,13H2,1-5H3/t17-,18+,19+,20-,22+,23+,24-/m1/s1; Key:LSWBQIAZNGURQV-WTBIUSKOSA-N;

Algestone acetonide (developmental code name W-3395), also known as algestone 16α,17α-acetonide or 16α,17α-isopropylidenedioxyprogesterone, is a progestin which was never marketed. It is the acetonide cyclic ketal of algestone. Another progestin, algestone acetophenide, in contrast, has been marketed.