Molekula
Estradiol
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Estradiol is a naturally occurring estrogen hormone used in hormone replacement therapy, fertility treatments, and research on endocrine function. It is available in powder form with a molecular weight of 272.38 g/mol, a molecular formula of C18H24O2, and a CAS number of 50-28-2. Store at ambient temperatures. Hazard classification includes the signal word Danger. Molekula supplies Estradiol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — $147.40 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White or creamy white, crystalline powder |
| Melting Point | 173 - 179°C |
| Water | <3.5% |
| Specific rotation | +76°~+83° |
| Identification | Conforms to reference |
| Loss on Drying | ≤0.5% |
| Assay | 97 - 103% |
| Individual impurity | ≤0.5% |
| Total Impurities | ≤1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Odour | Odorless |
| Melting Point | 178.5 °C |
| Water Solubility | 3.9 mg/L at 27 °C |
| Solubility (other solvents) | Very soluble in acetone, ethanol, dioxane |
| log P (octanol/water) | 4.01 |
Source: PubChem CID 5757 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 21566575 |
| CAS Number | 50-28-2 |
| IUPAC Name | (8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol |
| EC Number | 200-023-8 |
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.38 |
| Exact Mass | 272.1776 |
| SMILES | C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CCC4=C3C=CC(=C4)O |
| InChIKey | VOXZDWNPVJITMN-ZBRFXRBCSA-N |
| InChI | InChI=1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17+,18+/m1/s1 |
| PubChem CID | 5757 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| HTS Code | 29372350 |
| Tariff Code | 2937230000 |
Safety & GHS
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H350 May cause cancer
- H360FD May damage fertility. May damage the unborn child.
- H362 May cause harm to breast-fed children
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P201 Obtain special instructions before use
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 17beta-Estradiol
- Aquadiol
- beta-Estradiol
- Dihydrofolliculin
- Diogyn
- Diogynets
- Divigel
- Estrace
- Oestradiol
- Vivelle
Frequently asked questions
What is Estradiol used for?
Estradiol is a steroid hormone used in hormone replacement therapy and contraceptive formulations, and is also used in research to study estrogenic activity.
What is the chemical formula and molecular weight of Estradiol?
The chemical formula of Estradiol is C18H24O2, and its molecular weight is 272.38 g/mol.
How should Estradiol be stored?
Estradiol should be stored at ambient temperature, protected from light and moisture.
What grade of Estradiol is available?
Molekula supplies Estradiol in research grade, suitable for laboratory use.
Can Molekula supply Estradiol in bulk?
Yes, Molekula can supply Estradiol in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of Estradiol?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.