Chemistry:17α-Dihydroequilenin

Short description: Chemical compound

17α-Dihydroequilenin

Clinical data
Other names	NSC-12171; α-Dihydroequilenin; 6,8-Didehydro-17α-estradiol; Estra-1,3,5(10),6,8-pentaen-3,17α-diol
Routes of administration	By mouth
Drug class	Estrogen
Identifiers
IUPAC name (13S,14S,17R)-13-methyl-11,12,14,15,16,17-hexahydrocyclopenta[a]phenanthrene-3,17-diol
CAS Number	6639-99-2
PubChem CID	223998
ChemSpider	194598
ChEBI	CHEBI:34178
ChEMBL	ChEMBL135236
Chemical and physical data
Formula	C18H20O2
Molar mass	268.356 g·mol−1
3D model (JSmol)	Interactive image
SMILES C[C@]12CCC3=C([C@@H]1CC[C@H]2O)C=CC4=C3C=CC(=C4)O
InChI InChI=1S/C18H20O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h2-5,10,16-17,19-20H,6-9H2,1H3/t16-,17+,18-/m0/s1 Key:RYWZPRVUQHMJFF-KSZLIROESA-N

17α-Dihydroequilenin, or α-dihydroequilenin, also known as 6,8-didehydro-17α-estradiol, as well as estra-1,3,5(10),6,8-pentaen-3,17α-diol, is a naturally occurring steroidal estrogen found in horses which is closely related to equilin, equilenin, and 17α-estradiol, and, as the 3-sulfate ester sodium salt, is a minor constituent (1.2%) of conjugated estrogens (Premarin).

See also

• List of estrogens § Equine estrogens