Molekula
Estriol
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
Estriol is a naturally occurring estrogen hormone used in hormone replacement therapy and research on hormonal activity. It is available in powder form with a purity of ≥98% and is stable at ambient temperatures. CAS number: 50-27-1, molecular formula: C18H24O3, molecular weight: 288.38 g/mol. Hazard classification includes signal word: Danger. Molekula supplies Estriol 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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1 g — £108.60 per pack ex VAT · £130.32 inc. VAT
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/ off white crystalline powder |
| Specific rotation | +54° - +62° |
| Loss on Drying | ≤0.5% |
| Assay | 97%-102%(dried basis) |
| Residue on Ignition | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, microcrystalline powder |
| Odour | Odorless |
| Melting Point | 288 °C (decomposes) |
| Density | 1.27 g/cm³ at 25 °C |
| Solubility (other solvents) | Slightly soluble in ethyl ether, benzene, trifluoroacetic acid; very soluble in pyridine |
| log P (octanol/water) | 2.45 |
Source: PubChem CID 5756 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 72030665 |
| CAS Number | 50-27-1 |
| IUPAC Name | (8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol |
| EC Number | 200-022-2 |
| Molecular Formula | C18H24O3 |
| Molecular Weight | 288.38 |
| Exact Mass | 288.1725 |
| SMILES | C[C@]12CC[C@H]3[C@H]([C@@H]1C[C@H]([C@@H]2O)O)CCC4=C3C=CC(=C4)O |
| InChIKey | PROQIPRRNZUXQM-ZXXIGWHRSA-N |
| InChI | InChI=1S/C18H24O3/c1-18-7-6-13-12-5-3-11(19)8-10(12)2-4-14(13)15(18)9-16(20)17(18)21/h3,5,8,13-17,19-21H,2,4,6-7,9H2,1H3/t13-,14-,15+,16-,17+,18+/m1/s1 |
| PubChem CID | 5756 |
| REACH Code | Y110 |
| HTS Code | 29372350 |
| Tariff Code | 2937230000 |
Safety & GHS
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Serious Health Hazard
GHS08
Hazard statements
- H351 Suspected of causing cancer
- H360 May damage fertility or the unborn child
- H362 May cause harm to breast-fed children
Precautionary statements
- P201 Obtain special instructions before use
- P263 Avoid contact during pregnancy/while nursing
- 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, 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
- Aacifemine
- Destriol
- Estratriol
- Hormomed
- Oestriol
- Ovestin
- Ovestrion
- Theelol
- Tridestrin
- Trihydroxyestrin
Frequently asked questions
What is Estriol used for?
Estriol is primarily used in hormone replacement therapy and is also studied for its role in estrogen-related conditions.
What is the chemical formula and molecular weight of Estriol?
The formula is C18H24O3 with a molecular weight of 288.38 g/mol.
How should Estriol be stored?
Estriol should be stored at ambient temperature, away from moisture and light.
What grade of Estriol does Molekula supply?
Molekula supplies Estriol in research-grade purity suitable for laboratory use.
Can Molekula supply Estriol in bulk quantities?
Yes, Molekula can supply Estriol in bulk quantities—please contact our sales team for volume pricing.
What documentation comes with an Estriol order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.