Estrone sulfate potassium is a natural endogenous steroid and is an estrogen ester and conjugate[1].
[1]. O'Neil MM, et al. Differential Regulation of Gonadotropins in Response to Continuous Infusion of Native Gonadotropin-Releasing Hormone in the Winter Anovulatory Mare and Effects of Treatment With Estradiol-17β. J Equine Vet Sci. 2019 Apr;75:93-103.
















