Food & beverage
Antioxidant that protects colour and flavour; flour treatment agent in bakery.
Ingredients / Antioxidants / Ascorbic Acid
Antioxidants
Ascorbic Acid (E 300)
Ascorbic acid for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
TRACED · CERTIFIED · RELIABLE · TRANSPARENT · TESTED
Key facts
| CAS No. | 50-81-7 |
|---|---|
| E-number (EU) | E 300 |
| Synonyms | L-xylo-Ascorbic acid, L(+)- Ascorbic acid |
| Chemical formula | C6H8O6 |
| Molecular weight | 176,13 |
| Description | White to pale yellow, odourless crystalline powder |
| Grades | EU Reg. 231/2012 (E 300) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What ascorbic acid is
Chemical name: L-ascorbic acid. Formula C6H8O6, molecular weight 176,13. White to pale yellow, odourless crystalline powder. (Source: EU Regulation 231/2012, E 300.)
Applications by industry
Pharma & nutraceuticals
Vitamin C for supplements.
Personal care & cosmetics
Vitamin C as an active in skin care.
Sample specification
Values from EU Regulation 231/2012 (E 300), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | contains not less than 99 % of C6H8O6 after drying in a vacuum desiccator over sulphuric acid for 24 hours, |
|---|---|
| Loss on drying | Not more than 0,4 % (in vacuum over sulphuric acid, 24 hours) |
| Sulphated ash | Not more than 0,1 % |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Droplet promise. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
What is ascorbic acid used for?
Typical uses by industry. Food & beverage: Antioxidant that protects colour and flavour; flour treatment agent in bakery. Pharma & nutraceuticals: Vitamin C for supplements. Personal care & cosmetics: Vitamin C as an active in skin care. Suitability for your product and market is confirmed with the producer's specification.
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 300). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with ascorbic acid?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on drying, sulphated ash, arsenic, lead and mercury, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Related antioxidants
BHT, Butylated HydroxytolueneCalcium AscorbateErythorbic AcidSodium AscorbateAll antioxidants
Need ascorbic acid?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.