Molekula
Vitamin D2 (Ergocalciferol)
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
Vitamin D2 (Ergocalciferol) is a fat-soluble vitamin essential for calcium absorption, bone health, and immune function, widely used in dietary supplements, fortified foods, and pharmaceutical formulations. It is synthesized from ergosterol via UV irradiation. This chemical has a CAS number of 50-14-6, a molecular formula of C28H44O, and a molecular weight of 396.66. Store at 2 to 8°C, with a signal word of Danger due to potential hazards. Molekula supplies Vitamin D2 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 — $88.10 per pack
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5 g — $224.40 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 crystalline powder |
| Grade | USP 34 |
| Reducing Sugar | 20ppm max |
| Specific optical rotation | +103 ~ +107 |
| Content | 97 - 103% |
| Absorbance | 0.460~0.49 |
| Ergosterol | 0.2% max |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystals |
| Odour | Odorless |
| Melting Point | 116.5 °C |
| Water Solubility | 50 mg/L at 25 °C |
| Solubility (other solvents) | Soluble in alcohol, chloroform, ether, and fatty oils |
| pKa | pKa = 6.35 |
| log P (octanol/water) | 10.44 |
Source: PubChem CID 5280793 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 47989530 |
| CAS Number | 50-14-6 |
| IUPAC Name | (1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol |
| EC Number | 200-014-9 |
| Molecular Formula | C28H44O |
| Molecular Weight | 396.66 |
| Exact Mass | 396.3392 |
| SMILES | C[C@H](/C=C/[C@H](C)C(C)C)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C/3\C[C@H](CCC3=C)O)C |
| InChIKey | MECHNRXZTMCUDQ-RKHKHRCZSA-N |
| InChI | InChI=1S/C28H44O/c1-19(2)20(3)9-10-22(5)26-15-16-27-23(8-7-17-28(26,27)6)12-13-24-18-25(29)14-11-21(24)4/h9-10,12-13,19-20,22,25-27,29H,4,7-8,11,14-18H2,1-3,5-6H3/b10-9+,23-12+,24-13-/t20-,22+,25-,26+,27-,28+/m0/s1 |
| PubChem CID | 5280793 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29362950 |
| Tariff Code | 2936290000 |
Safety & GHS
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- H301 + H311 Toxic if swallowed or in contact with skin
- H330 Fatal if inhaled
- H372 Causes damage to organs through prolonged or repeated exposure
Precautionary statements
- P201 Obtain special instructions before use
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
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
- Calciferol
- Deltalin
- Drisdol
- Ercalciol
- ergocalciferol
- Ergorone
- Oleovitamin D2
- Ostelin
- Viosterol
- VITAMIN D2
Frequently asked questions
What is Vitamin D2 (Ergocalciferol) commonly used for?
Vitamin D2 is primarily used as a dietary supplement to prevent and treat vitamin D deficiency, support bone health, and aid in calcium absorption.
What is the chemical formula and molecular weight of Vitamin D2?
The chemical formula is **C28H44O** with a molecular weight of **396.66 g/mol**.
How should Vitamin D2 be stored?
Store Vitamin D2 at **2–8°C** in a cool, dry place, protected from light and moisture.
What grades or purity levels of Vitamin D2 does Molekula supply?
Molekula supplies **pharmaceutical-grade (USP/EP/BP compliant) and food-grade Vitamin D2** depending on the application.
Can Molekula supply Vitamin D2 in bulk quantities?
Yes, Molekula can supply Vitamin D2 in bulk, with packaging options ranging from kilograms to metric tons.
What documentation comes with a Vitamin D2 order?
Each order includes a **Certificate of Analysis (CoA), Safety Data Sheet (SDS), 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.