Ethinylestradiol

Ethinylestradiol Impurities & Reference Standards

Ethinylestradiol, supplied as a certified reference standard, is an active pharmaceutical ingredient (API) central to pharmaceutical formulation and drug product manufacturing. Ethinylestradiol is registered under CAS Number 57-63-6. With molecular formula C20H24O2 and molecular weight 296.4 g/mol, its physicochemical identity is well characterized. High-purity Ethinylestradiol and its related substances / process impurities are essential for analytical method development, method validation, quality control, and regulatory submissions under ICH, USP, BP, and EP guidelines. Each batch of Ethinylestradiol reference standard is accompanied by a Certificate of Analysis (CoA), HPLC purity data, and spectroscopic (NMR/MS/IR) characterization for use in pharmaceutical laboratories worldwide.