What does the restriction note for POTASSIUM SORBATE mean?

The restriction field for POTASSIUM SORBATE reads: V/4. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

How do I check if my formula contains POTASSIUM SORBATE?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 3702511/08/2020

POTASSIUM SORBATE

Potassium (E,E)-hexa-2,4-dienoate

POTASSIUM SORBATE is linked to 1 EU annex record on this page. Inventory note: V/4.

INCI Checker Compare all markets Search similar

Regulatory evidence by market

This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.

Compare markets

Swipe or scroll horizontally to see every column.

Market	Evidence status	Records	Source language
European Union	Evidence linked Positive-list entry with conditions Open this evidence	1	English and EU languages
Great Britain	Source mapped Official source mapped; ingredient rule not imported	0	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Evidence linked Permitted list with conditions Open this evidence	1	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Source mapped Official source mapped; ingredient rule not imported	0	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Source mapped Official source mapped; ingredient rule not imported	0	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 24634-61-5

CAS 24634-61-5PubChem CID 23676745

Potassium Sorbate

Potassium sorbate is a potassium salt having sorbate as the counterion. It has a role as an antimicrobial food preservative. It contains an (E,E)-sorbate. — ChEBI

IUPAC name: potassium (2E,4E)-hexa-2,4-dienoate

Molecular formula: C6H7KO2
Molecular weight: 150.22 g/mol
Exact mass: 150.00831095 Da
Topological polar surface area: 40.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

Sorbistat potassiumSorbic acid potassium saltBB PowderSorbic acid, potassium saltSorbistat-potassiumSorbistat kFEMA No. 2921Potassium (E,E)-hexa-2,4-dienoate

16 more reported names

1VPU26JZZ4Potassium (E,E)-2,4-hexadienoateIns no.202Potassium (e,e')-sorbateIns-202Potassium sorbate (e 202)2,4-Hexadienoic acid, potassium salt, (2E,4E)-E-202CHEBI:778682,4-Hexadienoic acid, (E,E)-, potassium salt2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)-RefChem:6159246-376-1680-685-6590-00-1Potassium (E,E)-sorbate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:77868
ChEMBL:CHEMBL2106930
EPA DTXSID:DTXSID7027835

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for POTASSIUM SORBATE

INCI name

POTASSIUM SORBATE

INN name

potassium sorbate

Ph. Eur. name

kalii sorbas

Description

Potassium (E,E)-hexa-2,4-dienoate

Record provenance

Inventory reference: 37025
Imported identity: POTASSIUM SORBATE
Source update: 11/08/2020

European Commission CosIng source notes

Annex records for POTASSIUM SORBATE

Annex V Restriction reference

Entry 4

SORBIC ACID / CALCIUM SORBATE / SODIUM SORBATE / POTASSIUM SORBATE

CAS: 110-44-1 / 7492-55-9 / 7757-81-5 / 24634-61-5

EC: 203-768-7 / 231-321-6 / 231-819-3 / 246-376-1

Key data

CAS

24634-61-5 / 590-00-1

246-376-1 / -

Restriction

V/4

Function

FRAGRANCE: Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.
PRESERVATIVE: Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#22757 · POTASSIUM SORBATE

Ingredients with overlapping formulation functions

POTASSIUM PARABENPRESERVATIVE

POTASSIUM PROPIONATEPRESERVATIVE

POTASSIUM PROPYLPARABENPRESERVATIVE

POTASSIUM SALICYLATEANTIMICROBIAL, PRESERVATIVE

POTASSIUM SULFITEANTIOXIDANT, HAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING

POTASSIUM UNDECYLENATEPRESERVATIVE, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PROPIONIC ACIDANTIMICROBIAL, FRAGRANCE, pH ADJUSTERS, PRESERVATIVE

PROPYL BENZOATEFRAGRANCE, PRESERVATIVE

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How POTASSIUM SORBATE appears in the CosIng inventory

The CosIng inventory lists POTASSIUM SORBATE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

POTASSIUM SORBATE is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

POTASSIUM SORBATE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for POTASSIUM SORBATE reads: "V/4". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, POTASSIUM SORBATE carries the following function designation(s):

CAS 24634-61-5 / 590-00-1 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Open INCI Checker

Source note for POTASSIUM SORBATE

This page combines the CosIng inventory entry for POTASSIUM SORBATE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research POTASSIUM SORBATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

View sources View updates

Tools & next steps

Check your formula

Scan a full INCI list to detect POTASSIUM SORBATE and any linked EU annex restrictions or allergen flags.

INCI Checker

Search similar ingredients

Find other inventory ingredients and annex entries related to POTASSIUM SORBATE, its identifiers or nearby name variants.