Molekula
Ascorbic Acid (Vitamin C) USP reference standard
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
Ascorbic Acid (Vitamin C) is a water-soluble vitamin essential for collagen synthesis, antioxidant function, and immune support, widely used as a pharmaceutical standard, nutritional supplement, and in food preservation. This USP reference standard ensures purity and consistency for analytical testing, quality control, and research applications. CAS 50-81-7, molecular formula C6H8O6, molecular weight 176.12 g/mol, stable at ambient conditions with no hazard classification. Molekula supplies Ascorbic Acid (Vitamin C) USP reference standard 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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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 | Undamaged packaging |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystals (plates or needles) |
| Odour | Odorless |
| Melting Point | 190-192 °C (some decomposition) |
| Density | 1.65 g/cm³ at 25 °C |
| pKa | pKa = 4.7 (at 10 °C) |
| log P (octanol/water) | -1.85 |
Source: PubChem CID 54670067 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90032889 |
| CAS Number | 50-81-7 |
| IUPAC Name | (2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one |
| EC Number | 200-066-2 |
| Molecular Formula | C6H8O6 |
| Molecular Weight | 176.12 |
| Exact Mass | 176.0321 |
| SMILES | C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O |
| InChIKey | CIWBSHSKHKDKBQ-JLAZNSOCSA-N |
| InChI | InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1 |
| PubChem CID | 54670067 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29362700 |
| Tariff Code | 2936270000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- 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
- Allercorb
- Ascoltin
- Ascorbajen
- ascorbic acid
- Ascorbicap
- Ascorin
- Ascorteal
- Cevitamic acid
- l-ascorbic acid
- vitamin C
Frequently asked questions
What is Ascorbic Acid USP reference standard primarily used for?
This product serves as a high-purity analytical standard for quality control in pharmaceuticals, food, and supplement industries to verify ascorbic acid content via assays like HPLC or titration.
What is the molecular formula and molecular weight of this Ascorbic Acid standard?
The molecular formula is **C₆H₈O₆**, and the molecular weight is **176.12 g/mol**.
How should this reference standard be stored?
Store in a tightly sealed container at **ambient temperature**, away from light, moisture, and strong oxidizing agents.
What grade is this Ascorbic Acid, and is it suitable for analytical testing?
This is a **USP reference standard grade**, meeting strict purity requirements (typically ≥99.9%) for accurate analytical testing.
Can Molekula supply this Ascorbic Acid USP reference standard in bulk quantities?
While this product is typically sold in smaller analytical quantities, Molekula can explore bulk or custom packaging options—please contact us for availability.
What documentation comes with an order of this reference standard?
Each order includes a **Certificate of Analysis (CoA)** with batch-specific purity data, a **Safety Data Sheet (SDS)**, and a **Material Safety Information** document.
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.