A metabolite of 17B -Estradiol.Atmosphere:Inert gasSolubility:Methanol (sparingly); WaterMelting Point:>250°C (dec.)Method for Determining Identity: Proton NMR (CD3OD) and MSStorage and Stability:Store at -20°C under inert atmosphere. Caution: Hygroscopic. For maximum recovery of product, centrifuge the original vial prior to removing the cap.