Ethinyl Estradiol (CAS 57-63-6) is a synthetic analog of the natural estrogen estradiol, distinguished by the addition of an ethynyl group at the 17α position. This chemical modification significantly enhances its oral bioavailability and resistance to first-pass metabolism, making it an exceptionally effective estrogenic compound for pharmaceutical use. The scientific community and regulatory bodies place a high premium on the purity and potency of this API. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to meeting these scientific demands, offering Ethinyl Estradiol with a guaranteed purity of ethinyl estradiol 99% powder. As a reputable ethinyl estradiol manufacturer, our commitment to scientific rigor is evident in every batch produced.

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