Estradiol is a steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species. Estradiol belongs to class of hormones called progestogens, and is the major naturally occurring human progestogen.

Product is stable for several weeks at 4°C. For extended storage, aliquot content and store product at –20ºC. Avoid cycles of freezing and thawing. Expiration date is six months from date of shipping if properly stored.