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Coenzymes and cofactors

Ascorbate

Also known as L-ascorbate(1-), (2R)-2-((1S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate, L-Ascorbate

CAS 299-36-5Formula C6H7O6-Molar mass 175.12 g/mol
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Ascorbate chemical structure, C6H7O6-, CAS 299-36-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
299-36-5
Formula
C6H7O6-
Molar mass
175.12 g/mol
HS code
293220
Category
Coenzymes and cofactors

What is Ascorbate?

Plain description, key identifiers and synonyms

L-ascorbate is the L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants. It has a role as a cofactor, a human metabolite and a Daphnia magna metabolite. It is a vitamin C and an ascorbate. It is a conjugate base of a L-ascorbic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2R)-2-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-5-oxo-2H-furan-4-olate
CAS number
299-36-5
Molecular formula
C6H7O6-
InChIKey
CIWBSHSKHKDKBQ-JLAZNSOCSA-M
InChI
InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/p-1/t2-,5+/m0/s1
Canonical SMILES
O=C1OC(C(O)CO)C(O)=C1[O-]
Isomeric SMILES
C([C@@H]([C@@H]1C(=C(C(=O)O1)[O-])O)O)O

Synonyms

  • L-ascorbate(1-)
  • (2R)-2-((1S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate
  • L-Ascorbate
  • Ascorbate anion
  • L-Ascorbic acid, ion(1-)
  • (2R)-2-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-5-oxo-2H-furan-4-olate
  • (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate
  • (5R)-5-[(1S)-1,2-Dihydroxyethyl]-4-hydroxy-2-oxo-2,5-dihydrofuran-3-olate

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
175.12 g/molcalc.
Exact mass
175.0248 Dacalc.
LogP (octanol/water)
-2.61calc.
Topological polar surface area
110.1 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
2calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
-1calc.
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=C1C=CCO1

O=C1C=CCO1

1 ring, 6 atoms, the 2(5H)-Furanone ring system.

877 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Ascorbate suppliers

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Ascorbate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • Daphnia magna metabolite
  • Daphnia metabolite
  • animal metabolite
  • cofactor
  • crustacean metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • 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 Ascorbate 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 Ascorbate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ascorbate, based on the data on this page

What is Ascorbate?

L-ascorbate is the L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants. It has a role as a cofactor, a human metabolite and a Daphnia magna metabolite.

What is the CAS number of Ascorbate?

The CAS registry number of Ascorbate is 299-36-5.

What is the molecular formula and weight of Ascorbate?

The molecular formula of Ascorbate is C6H7O6- and its molar mass is 175.12 g/mol.

What is Ascorbate used for?

Known uses and roles of Ascorbate include daphnia magna metabolite, daphnia metabolite, animal metabolite, cofactor, crustacean metabolite and 4 more.

Is Ascorbate hazardous?

No GHS hazard classification for Ascorbate is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Ascorbate?

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

Where can I buy Ascorbate?

Post a free request on CompoundList and suppliers of Ascorbate will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Ascorbate?

Suppliers quote Ascorbate 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 Ascorbate

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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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