Background:

Estradiol cypionate is a 17 β-cyclopentylpropinate ester of estradiol, inhibits ET-1 synthesis via estrogen receptorIC50 value:Target: estrogen receptorEstradiol cypionate is a synthetic ester, is a estrogen. Compared to other commonly used estradiol esters, via the intramuscular route, Estradiol cypionate is found to have the longest duration of action with a duration of