Estradiol Hemihydrate, Estra-1,3,5(10)-triene-3,17-diol (17beta)-, hydrate (2:1) (9CI), beta-Estradiol hemihydrate, beta-Estradiol semihydrate, Estradiol Benzoate Imp. A (EP) as Hemihydrate, Estradiol Valerate Imp. A (EP) as Hemihydrate, Estriol Imp. D (EP) as Hemihydate, Ethinylestradiol Imp. D (EP) as Hemihydrate