<unk>  (brand name Esmopal), or<unk>  monopalmitate, also known as<unk>  17β-hexadecanoate, is a naturally occurring steroidal estrogen and an estrogen ester – specifically, the C17β<unk>  ester of<unk> . It occurs in the body as a very long-lasting metabolite and prohormone of<unk> . The compound has no affinity for the estrogen receptor, requiring transformation into<unk>  for its estrogenic activity. In addition to its endogenous role,<unk>  was formerly used as a fattening agent in chickens under the brand name Esmopal.
Estradiol palmitate
Estradiol diundecylate
Estradiol acetate
Estradiol sulfate
Polyestriol phosphate
Estradiol monopropionate
Estradiol valerate
Estradiol hemisuccinate