Trisha Shetty


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Routes of administration  Oral
PubChem CID  11723045
CAS Number  4717-40-2
ChemSpider  9897761
Synonyms  EE3; 17α-Ethynylestriol; 17α-Ethynylestra-1,3,5(10)-triene-3,16α,17β-triol

Ethinylestriol (EE3), or 17α-ethynylestriol, also known as 17α-ethynylestra-1,3,5(10)-triene-3,16α,17β-triol, is a synthetic, steroidal estrogen that was never marketed. Nilestriol, the 3-cyclopentyl ether of ethinylestriol, is a prodrug of ethinylestriol, and is a more potent estrogen in comparison, but, similarly to ethinylestriol, was never marketed. Ethinylestriol has been found to reduce the risk of 7,12-dimethylbenz(a)anthracene (DMBA)-induced mammary cancer when given as a prophylactic in animal models, while other estrogens like ethinylestradiol and diethylstilbestrol were ineffective.


Ethinylestriol Wikipedia

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