Estradiol CAS#: 57-91-0; ChemWhat Code: 68563
Names & Identifiers |
| Product Name | Estradiol |
| Synonyms | 1,3,5-estratriene-3,17-alpha-diol;1,3,5-Estratriene-3,17alpha-diol;17alpha-Oestradiol;3,17alpha-Dihydroxyestra-1,3,5(10)-triene;3,17-alpha-dihydroxyoestra-1,3,5(10)-triene;3,17alpha-Dihydroxyoestra-1,3,5(10)-triene;5(10)-triene-3,17-diol,(17-alpha)-estra-3;epiestradial |
| CAS Registry Number | 57-91-0 |
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.38 |
| EINECS | 200-023-8 |
| Other Registry Numbers | |
| More Identifiers on PubChem | IUPA Names, InChI, InChI Key, Canonical SMILES, etc. |
![]() |
|
Chemical & Physical Properties |
| Melting point | 176-180 °C(lit.) |
| alpha | D20 +53 to +56° (c = 0.9 in dioxane) |
| Storage | 0-6°C |
| Solubulity | ethanol: 50 mg/mL, clear, Colorless |
| form | powder |
| Color | white with slight yellow cast |
| Merck | 13,3738 |
| More Properties From PubChem | Topological Polar Surface Area, Monoisotopic Mass, etc. |
| NIST Chemistry Reference | Estra-1,3,5(10)-triene-3,17alpha-diol(57-91-0) |
Safety & Hazards(Codes & Phrases) |
| Hazard Codes | T,Xn |
| R Phrase | 45-48-40 |
| S Phrase | 53-45-24/25-22 |
| RIDADR | UN 2811 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | KG3750000 |
| F | 8-10 |
| More Safety & Hazards From PubChem | Signal, GHS Hazard Statements, Precautionary Statement Codes, etc. |
Literature |
| Literature on PubChem | Synthesis References, Metabolite References, etc. |
Patents |
| Patents on PubChem | Related Patents Of This Product |
Transportation, Storage & Usage |
| Transportation | No Information |
| Storage | No Information |
| Usage | No Information |
Spectral Properties |
| No Information |
Buy Reagent | |
| No reagent supplier? | Send quick inquiry to ChemWhat |
| Want to be listed here as a reagent supplier? (Paid service) | Click here to contact ChemWhat |
Approved Manufacturers | |
| Want to be listed as an approved manufacturer (Requires approvement)? | Please download and fill out this form and send back to approved-manufacturers@chemwhat.com |
Other Suppliers | |
| Watson International Limited | Visit Watson Official Website |
Contact Us for Other Help | |
| Contact us for other information or services | Click here to contact ChemWhat |


