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Vitamins and nutraceutical actives

Potassium ascorbate

Also known as Potassium L-ascorbate, Monopotassium ascorbate, Potassium (2R)-2-((1S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2H-furan-3-olate

CAS 15421-15-5Formula C6H7KO6Molar mass 214.21 g/molEC 239-432-1
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Potassium ascorbate chemical structure, C6H7KO6, CAS 15421-15-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
15421-15-5
Formula
C6H7KO6
Molar mass
214.21 g/mol
EC number
239-432-1
HS code
293627
Category
Vitamins and nutraceutical actives

What is Potassium ascorbate?

Plain description, key identifiers and synonyms

Potassium ascorbate is a chemical substance with the molecular formula C6H7KO6 and a molar mass of 214.21 g/mol. Its CAS registry number is 15421-15-5. The IUPAC name is potassium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
potassium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate
CAS number
15421-15-5 CAS number cross-checked
EC number
239-432-1
Molecular formula
C6H7KO6
UNII
X5523762RI
INCI name
POTASSIUM ASCORBATE
InChIKey
CONVKSGEGAVTMB-RXSVEWSESA-M
InChI
InChI=1S/C6H8O6.K/c7-1-2(8)5-3(9)4(10)6(11)12-5;/h2,5,7-10H,1H2;/q;+1/p-1/t2-,5+;/m0./s1
Canonical SMILES
O=C1OC(C(O)CO)C([O-])=C1O.[K+]
Isomeric SMILES
C([C@@H]([C@@H]1C(=C(C(=O)O1)O)[O-])O)O.[K+]

Synonyms

  • Potassium L-ascorbate
  • Monopotassium ascorbate
  • Potassium (2R)-2-((1S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2H-furan-3-olate
  • Potassium (R)-2-((S)-1,2-dihydroxyethyl)-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate
  • potassium, (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate
  • potassium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate
  • 3-O-Potassio-L-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
214.21 g/molcalc.
Exact mass
213.988 Dacalc.
LogP (octanol/water)
-5.6calc.
Topological polar surface area
110.1 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
2calc.
Heavy atoms
13calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
2calc.
Components
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.

Potassium ascorbate suppliers

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All 4 suppliers
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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

4 suppliers in 2 countries

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Potassium 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

Cosmetic ingredient, INCI name POTASSIUM ASCORBATE(antioxidant)

Functional uses

  • Antioxidant

Cosmetic functions

  • Antioxidant

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Potassium ascorbate is traded under.

HS 2936.27Indicative HS code

Vitamin C and its derivatives

World exports in 2024
$1.02B
+7.5% vs 2023, imports $1.07B
2019 to 2024
Top exporters
  1. China60.4%
  2. United States10.4%
  3. Netherlands9.2%
Top importers
  1. United States18.5%
  2. Netherlands9.9%
  3. Germany7.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Potassium ascorbate, based on the data on this page

What is Potassium ascorbate?

Potassium ascorbate is a chemical substance with the molecular formula C6H7KO6 and a molar mass of 214.21 g/mol. Its CAS registry number is 15421-15-5. The IUPAC name is potassium (2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2H-furan-3-olate.

What is the CAS number of Potassium ascorbate?

The CAS registry number of Potassium ascorbate is 15421-15-5.

What is the molecular formula and weight of Potassium ascorbate?

The molecular formula of Potassium ascorbate is C6H7KO6 and its molar mass is 214.21 g/mol.

What is Potassium ascorbate used for?

Known uses and roles of Potassium ascorbate include vitamins and supplements in pharmaceuticals, antioxidants in cosmetics and personal care, vitamins, minerals and nutrients in food and beverage, feed vitamins in animal feed and nutrition and antioxidant.

Is Potassium ascorbate hazardous?

No GHS hazard classification for Potassium 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 Potassium ascorbate?

Potassium ascorbate is usually classified under HS code 293627 (Vitamin C and its derivatives). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Potassium ascorbate?

CompoundList lists 4 suppliers of Potassium ascorbate in China and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Potassium ascorbate in India?

1 supplier in India list Potassium ascorbate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Potassium ascorbate?

Suppliers quote Potassium 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 Potassium 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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