CAS Registry Number

CAS 57-63-6 — Ethynylestradiol

Ethynylestradiol is a synthetic estrogen hormone used primarily in birth control pills and hormone replacement therapies to regulate reproductive cycles and treat hormonal imbalances. This potent compound is a key active ingredient in pharmaceutical formulations due to its high efficacy. Ethynylestradiol (CAS 57-63-6) has the molecular formula C20H24O2 and a molecular weight of 296.40 g/mol. It should be stored at ambient conditions and handled with caution, as it carries a **Danger** signal word for toxicity and environmental hazards. Molekula supplies Ethynylestradiol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.