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Vitamins and nutraceutical actives

Dehydroascorbic acid

Also known as L-Dehydroascorbic acid, DHAA, Dehydro-L-ascorbic acid

CAS 490-83-5Formula C6H6O6Molar mass 174.11 g/molEC 207-720-6
GHS signal word: Warning. Pictograms: Harmful or irritant 41 suppliers listed
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Dehydroascorbic acid chemical structure, C6H6O6, CAS 490-83-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
490-83-5
Formula
C6H6O6
Molar mass
174.11 g/mol
EC number
207-720-6
HS code
293220
Category
Vitamins and nutraceutical actives

What is Dehydroascorbic acid?

Plain description, key identifiers and synonyms

L-dehydroascorbic acid is dehydroascorbic acid having the L-configuration. It has a role as a coenzyme and a mouse metabolite. It is a dehydroascorbic acid and a vitamin C. It is functionally related to a L-ascorbic acid. It is a conjugate acid of a L-dehydroascorbate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(5R)-5-[(1S)-1,2-dihydroxyethyl]oxolane-2,3,4-trione
CAS number
490-83-5 CAS number cross-checked
EC number
207-720-6
Molecular formula
C6H6O6
UNII
Y2Z3ZTP9UM
MDL number
MFCD00066467
InChIKey
SBJKKFFYIZUCET-JLAZNSOCSA-N
InChI
InChI=1S/C6H6O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-8H,1H2/t2-,5+/m0/s1
Canonical SMILES
O=C1OC(C(O)CO)C(=O)C1=O
Isomeric SMILES
C([C@@H]([C@@H]1C(=O)C(=O)C(=O)O1)O)O

Synonyms

  • L-Dehydroascorbic acid
  • DHAA
  • Dehydro-L-ascorbic acid
  • L-Threo-hexo-2,3-diulosono-1,4-lactone
  • (5R)-5-[(1S)-1,2-dihydroxyethyl]oxolane-2,3,4-trione
  • L-threo-2,3-Hexodiulosonic acid, gamma-lactone
  • (5R)-5-[(1S)-1,2-dihydroxyethyl]furan-2,3,4(5H)-trione
  • (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-Dehydro Ascorbic Acid
  • L-Dehydroascorbate
  • (R)-5-((S)-1,2-dihydroxyethyl)furan-2,3,4(5H)-trione
  • Bis-dehydro-L-ascorbicacid
  • L-threo-2,3-Hexodiulosonic acid gamma-lactone
  • L-threo-2,3-Hexodiulosonic acid, g-lactone
  • (L)-Dehydroascorbic acid
  • L-Ascorbic acid, dehydro-
  • 1-Dehydroascorbate
  • Bis-dehydro-l-ascorbic acid
  • 1-Dehydroascorbic acid
  • Dehydro-L-Ascorbinsaure
  • Dehyroascorbic acid
Show all 34 synonyms
  • Dehydroascorbic Acid, DHA
  • Dehydroascorbic-acid
  • L-threo-Dehydroascorbic acid
  • L-Dehydro Ascorbic Acid (>90%)
  • L-threo-23-Hexodiulosonic acid gamma-lactone
  • Dehydro-L-(+)-ascorbic acid dimer, >=80% (enzymatic)
  • (5R)-5-[(1S)-1,2-dihydroxyethyl]tetrahydrofuran-2,3,4-trione
  • (5R)-5-[(1S)-1,2-dihydroxyethyl]furan-2,3,4(5H)-trione (non-preferred name)
  • Dehydro-L-ascorbic acid, L-threo-2,3-hexodiulosonic acid gamma-lactone, Oxidized ascorbic acid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
174.11 g/molcalc.
Exact mass
174.0164 Dacalc.
LogP (octanol/water)
-2.6calc.
Topological polar surface area
100.9 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
2calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1COC(=O)C1=O

O=C1COC(=O)C1=O

1 ring, 8 atoms.

8 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Dehydroascorbic acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 41 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

41 suppliers in 11 countries

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Dehydroascorbic acid price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Vitamins

Roles

  • animal metabolite
  • coenzyme
  • cofactor
  • eukaryotic metabolite
  • mammalian metabolite
  • metabolite
  • mouse metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dehydroascorbic acid is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Dehydroascorbic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dehydroascorbic acid, based on the data on this page

What is Dehydroascorbic acid?

L-dehydroascorbic acid is dehydroascorbic acid having the L-configuration. It has a role as a coenzyme and a mouse metabolite. It is a dehydroascorbic acid and a vitamin C. It is functionally related to a L-ascorbic acid. It is a conjugate acid of a L-dehydroascorbate.

What is the CAS number of Dehydroascorbic acid?

The CAS registry number of Dehydroascorbic acid is 490-83-5.

What is the molecular formula and weight of Dehydroascorbic acid?

The molecular formula of Dehydroascorbic acid is C6H6O6 and its molar mass is 174.11 g/mol.

What is Dehydroascorbic acid used for?

Known uses and roles of Dehydroascorbic acid include vitamins and supplements in pharmaceuticals, vitamins, minerals and nutrients in food and beverage, animal metabolite, coenzyme, cofactor and 5 more.

Is Dehydroascorbic acid hazardous?

Dehydroascorbic acid carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dehydroascorbic acid?

Dehydroascorbic acid is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dehydroascorbic acid?

CompoundList lists 41 suppliers of Dehydroascorbic acid in China, United States, United Kingdom, Canada and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Dehydroascorbic acid?

Suppliers quote Dehydroascorbic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Dehydroascorbic acid

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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