β-Estradiol
SIGMA/E2758 - BioReagent, powder, suitable for cell culture
Synonym: 1,3,5-
CAS Number: 50-28-2
Empirical Formula (Hill Notation): C18H24O2
Molecular Weight: 272.38
EC Number: 200-023-8
MDL Number: MFCD00003693
Linear Formula: C18H24O2
Product Type: Chemical
| assay | ≥98% (HPLC) |
| biological source | synthetic (organic) |
| form | powder |
| InChI | 1S/C18H24O2/c1-18-9-8-14- |
| InChI key | VOXZDWNPVJITMN-ZBRFXRBCSA |
| mp | 176-180 °C (lit.) |
| product line | BioReagent |
| Quality Level | 200 ![]() |
| shipped in | ambient |
| SMILES string | O[C@H]1CC[C@@]2([H])[C@]3 |
| solubility | ethanol: 50 mg/mL, clear, colorless |
| storage temp. | room temp |
| technique(s) | cell culture | mammalian: suitable |
| single cell analysis: suitable |
| Application: | β-Estradiol is used to study cell differentiation and transformations (tumorigenicity). |
| Application: | β-Estradiol has been used: • as a component of Dulbecco′s modified Eagle medium (DMEM) for culturing mammary tumor cells • as a oestrogenic compound for testing neuroprotective effects • as a component of medium199 for culturing oocytes |
| Biochem/physiol Actions: | The major estrogen secreted by the premenopausal ovary. |
| Biochem/physiol Actions: | The major estrogen secreted by the premenopausal ovary. Estrogens direct the development of the female phenotype in embryogenesis and during puberty by regulating gene transcription and, thus, protein synthesis. It also induces the production of gonadotropins which, in turn, induce ovulation. Exposure to estradiol increases breast cancer incidence and proliferation. |
| Biochem/physiol Actions: | β-Estradiol (E2) is a major premenopausal hormone in women and is essential for spermiogenesis, sperm maturation and motility in men. Cultured bone marrow stem cells (BMSCs) have ability to synthesize E2 and could be exploited for treating estrogen deficiency. It mediates physiological functions through estrogen receptor (ER) α and ERβ. |
| General description: | β-Estradiol or estradiol-17 β (E2) is secreted majorly by the large preovulatory follicles in the ovary. In addition, estradiol can be synthesized de novo from cholesterol have androgens synthesized from cholesterol. The aromatization of androgen by enzyme aromatase (P450arom) results in the β-estradiol production. |
| Packaging: | 1, 5 g in glass bottle |
| Packaging: | 250 mg in glass bottle |
| Physical form: | powder-RT; stock-frozen in working aliquots, avoid repeated freeze/thaw |
| Preparation Note: | To prepare a 20 μg/ml stock solution, add 1 ml absolute ethanol to 1 mg β-estradiol; gently swirl to dissolve; add 49 ml sterile medium while mixing. |
| Symbol | ![]() GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H351 - H360FD - H362 - H410 |
| Precautionary statements | P202 - P260 - P263 - P264 - P273 - P308 + P313 |
| Hazard Codes | T |
| Risk Statements | 60-63-40-64 |
| Safety Statements | 53-45 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98% (HPLC) |
| mp | 176-180 °C (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12352209 |



