CAS RN: 56-53-1 EINECS: 200-278-5 Molecular Formula : C18H20O2 Molecular Weight : 268.35 Appearance: White to off-white crystalline powder Quality Standard : CP2005/USP30/BP2007 Heavy metal : 0.00 (ppm) Content: 99 ( % ) Uses: Other API, Diethylstilbestrol is used for ovarian dysfunction or pituitary dysfunction caused by various diseases , amenorrhea , uterine hypoplasia , dysfunctional uterine bleeding, menopausal syndrome, senile vaginitis and retirement milk and so on. Packing : 25kg/drum Shelf life: 36 ( months )