L-Dehydro Ascorbic Acid

Name: L-Dehydro Ascorbic Acid
Brand: Vaqora Chemicals
SKU: VQ-026374

About L-Dehydro Ascorbic Acid

Listed under CAS 490-83-5, L-Dehydro Ascorbic Acid is an impurity of Ascorbic acid available from Vaqora Chemicals. Formula C6H6O6, molecular weight 174.11 g/mol. The IUPAC name is (5R)-5-[(1S)-1,2-dihydroxyethyl]oxolane-2,3,4-trione. Common synonyms include Dehydro-L-ascorbic acid and L-Threo-hexo-2,3-diulosono-1,4-lactone.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

This Ascorbic acid impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Ascorbic acid

View every impurity, metabolite and intermediate we list for Ascorbic acid.

Ascorbic acid impurities

Specifications & identifiers

Chemical identifiers
Product name	L-Dehydro Ascorbic Acid
Catalogue No.	VQ-026374
CAS Number	490-83-5
IUPAC name	(5R)-5-[(1S)-1,2-dihydroxyethyl]oxolane-2,3,4-trione
Molecular formula	C₆H₆O₆
Molecular weight	174.11 g/mol
Exact mass	174.0164
Grade	Reference Standard
HSN code	38229090
InChIKey	SBJKKFFYIZUCET-JLAZNSOCSA-N
SMILES	C([C@@H]([C@@H]1C(=O)C(=O)C(=O)O1)O)O
PubChem CID	440667

Physical properties
Physical form	Solid
LogP (XLogP3)	-1
H-bond donors / acceptors	2 / 6
TPSA	101 Å²
Synonyms	Dehydro-L-ascorbic acid, L-Threo-hexo-2,3-diulosono-1,4-lactone, L-threo-2,3-Hexodiulosonic acid, gamma-lactone, (5R)-5-[(1S)-1,2-dihydroxyethyl]furan-2,3,4(5H)-trione, Acid, Dehydroascorbic, (5R)-5-((1S)-1,2-dihydroxyethyl)oxolane-2,3,4-trione, 5-(1,2-Dihydroxyethyl)oxolane-2,3,4-trione, dehydroascorbate, L-Dehydroascorbate, (R)-5-((S)-1,2-dihydroxyethyl)furan-2,3,4(5H)-trione, Bis-dehydro-L-ascorbicacid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of L-Dehydro Ascorbic Acid?

The CAS Registry Number of L-Dehydro Ascorbic Acid is 490-83-5. It is also known as Dehydro-L-ascorbic acid, L-Threo-hexo-2,3-diulosono-1,4-lactone, L-threo-2,3-Hexodiulosonic acid, gamma-lactone.

What is the molecular formula and molecular weight of L-Dehydro Ascorbic Acid?

L-Dehydro Ascorbic Acid has the molecular formula C6H6O6 and a molecular weight of 174.11 g/mol. Its IUPAC name is (5R)-5-[(1S)-1,2-dihydroxyethyl]oxolane-2,3,4-trione.

What is L-Dehydro Ascorbic Acid used for?

L-Dehydro Ascorbic Acid is supplied as a characterised reference material related to Ascorbic acid. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of L-Dehydro Ascorbic Acid can I order?

We supply L-Dehydro Ascorbic Acid in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with L-Dehydro Ascorbic Acid?

Yes. Every lot of L-Dehydro Ascorbic Acid is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can L-Dehydro Ascorbic Acid be shipped internationally?

Yes. L-Dehydro Ascorbic Acid is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.