Estradiol is a steroid hormone that is crucial for maintaining female fertility and secondary sexual characteristics. It upregulates the expression of interleukin-6 through the estrogen receptor β (ERβ) pathway. Purity: >98%. Storage/Preservation Method: Powder can be stored at -20°C for one year; after dissolution, it can be stored at 2 - 4°C for two weeks or at -20°C for six months. Basic Information: Alternative Names: Estradiol; β-Estradiol; E2; 17β-Estradiol; 17β-Estradiol. Appearance: White to grayish-white powder. Solubility: Dimethyl sulfoxide: ≥ 50 mg/mL (183.57 mmol/L); Ethanol: 20 mg/mL (73.43 mmol/L; requires ultrasonic treatment).