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Alternate Names: 19-Norpregna-1,3,5(10)-trien-20-yne-16,17-diol, 3-(cyclopentyloxy)-, (16alpha,17alpha)-, 3-(Cyclopentyloxy)-17alpha-ethinyl-1,3,5(10)-estratrien-16alpha,17beta-diol
CAS No: 39791-20-3
PubChem CID: 38346
Mol Formula: C25H32O3
Mol Weight: 380.5 g/mol
IUPAC Name: (8R,9S,13S,14S,16R,17R)-3-cyclopentyloxy-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-16,17-diol
API Description: Nilestriol is a synthetic, long-acting estrogen used in hormone replacement therapy to treat conditions like menopausal symptoms. It is a derivative of estriol and a prodrug of ethinylestriol, meaning it is converted to an active form in the body.