Estradiol diundecylate
Estradiol diundecylate ( brand name Estrolent ) , or estradiol diundecanoate , also known as 17β-estradiol 3 , 17β-diundecylate , is an estrogen and an estrogen ester – specifically , the 3 , 17β-diundecylate ester of estradiol – which has been marketed in Romania . 
<triplet> estrogen ester <subj> ester <obj> instance of