nomegestrol and its Impurities

Nomegestrol is used in birth control pills, menopausal hormone therapy, and for the treatment of gynecological disorders. It is sold under the brand names Lutenyl and Zoely. It is available both alone and in combination with an estrogen. Reference standards of Nomegestrol API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.