Molekula
Ergosterol
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
Ergosterol is a naturally occurring sterol found in fungi, yeast, and plants, primarily used as a precursor in the industrial synthesis of vitamin D2 (ergocalciferol) and as a research chemical in biochemical studies. It is a white to pale yellow crystalline powder with a molecular formula of C28H44O and a molecular weight of 396.65 g/mol. Store at 2 to 8°C under dry conditions. It has no signal word but carries hazard statement H413 (may cause long lasting harmful effects to aquatic life), so avoid release to the environment. Molekula supplies Ergosterol 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.
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5 g — £135.00 per pack ex VAT · £162.00 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White/ off white crystalline powder |
| Melting Point | 157 - 164 ℃ |
| Water | ≤ 3.0% |
| Specific rotation | ≤ -120 |
| Assay (HPLC) | ≥ 97.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless crystals |
| Melting Point | 170 °C |
| Boiling Point | 250 °C at 0.01 mmHg |
| Solubility (other solvents) | Slightly soluble in ethanol, ethyl ether, petroleum ether; soluble in benzene, chloroform |
Source: PubChem CID 444679 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90028111 |
| CAS Number | 57-87-4 |
| IUPAC Name | (3S,9S,10R,13R,14R,17R)-17-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol |
| EC Number | 200-352-7 |
| Molecular Formula | C28H44O |
| Molecular Weight | 396.65 |
| Exact Mass | 396.3392 |
| SMILES | C[C@H](/C=C/[C@H](C)C(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3C2=CC=C4[C@@]3(CC[C@@H](C4)O)C)C |
| InChIKey | DNVPQKQSNYMLRS-APGDWVJJSA-N |
| InChI | InChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,26-,27-,28+/m0/s1 |
| PubChem CID | 444679 |
| REACH Code | Y113 |
| HTS Code | 29369001 |
| Tariff Code | 2936900000 |
Safety & GHS
Hazard statements
- H413 May cause long lasting harmful effects to aquatic life
Precautionary statements
- P264 Wash thoroughly after handling
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
- (22E,24S)-24-methylcholesta-5,7,22-trien-3beta-ol
- (22E)-ergosta-5,7,22-trien-3beta-ol
- D2, Pro-Vitamin
- Ergosta-5,7,22-trien-3-ol, (3b,22E)-
- Ergosta-5,7,22-trien-3beta-ol
- Ergosta-5,7,22E-trien-3beta-ol
- Ergosterin
- Ergosterol (Provitamin D2)
- Provitamin D2
Frequently asked questions
What is ergosterol primarily used for?
Ergosterol is commonly used as a precursor for vitamin D2 synthesis, in nutritional supplements, and as a standard in biochemical research for sterol analysis.
What is the chemical formula and molecular weight of ergosterol?
The chemical formula is C28H44O with a molecular weight of 396.65 g/mol.
How should ergosterol be stored?
Store ergosterol in a tightly sealed container at 2–8°C to maintain stability and prevent degradation.
What purity grades of ergosterol does Molekula offer?
Molekula supplies ergosterol in analytical and biochemical research grades, with purity typically ≥98% by HPLC.
Can Molekula provide ergosterol in bulk quantities?
Yes, ergosterol is available in bulk, with custom packaging options for larger orders—please contact us for specific quantities and pricing.
What documentation is provided with an ergosterol order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.