The chemical Quinestrol has a designated molecular formula of C25H32O2 and a molecular weight of 364.529 g/mol. Synonyms may include: W 3566, EECPE, EINECS 205-803-1, Eston, Estradiol-17-beta 3-cyclopentyl ether, Estrovis, Estrovis 4000, Estrovister, 17-alpha-Ethinylestradiol 3-cyclopentyl ether, Plestrovis, Qui-Lea, Quinestrolo [DCIT] (ChemID).