estradiol hemihydrate and its Impurities

A hemihydrate form of Estradiol, a naturally occurring steroidal hormone.It is a sex hormone of female which activates the nuclear estrogen receptor found in the reproductive tract, breast, pituitary, hypothalamus. Estradiol is an agonist of the estrogen receptor (ER), a nuclear steroid hormone receptor.. Reference standards of Estradiol Hemihydrate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below