What does the restriction note for POTASSIUM PARABEN mean?

The restriction field for POTASSIUM PARABEN reads: V/12. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 16782-08-4?

CAS 16782-08-4 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

How do I check if my formula contains POTASSIUM PARABEN?

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 3701111/08/2020

POTASSIUM PARABEN

Potassium 4-hydroxybenzoate

POTASSIUM PARABEN is linked to 1 EU annex record on this page. Inventory note: V/12.

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Regulatory evidence by market

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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 16782-08-4

CAS 16782-08-4PubChem CID 23672310

Potassium Paraben

The CIR Expert Panel concluded that the following 20 parabens are safe in cosmetics in the present practices of use and concentration described in the safety assessment when the sum of the combined concentration of parabens in any given formulation does not exceed 0.8 %...Potassium Paraben... — Cosmetic Ingredient Review (CIR)

IUPAC name: potassium 4-hydroxybenzoate

Molecular formula: C7H5KO3
Molecular weight: 176.21 g/mol
Exact mass: 175.98757550 Da
Topological polar surface area: 60.4 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 0

Also known as

potassium p-hydroxybenzoateUNII-UHZ6Y0A8VRUHZ6Y0A8VREINECS 240-830-2MONOPOTASSIUM P-HYDROXYBENZOATE4-HYDROXYBENZOIC ACID POTASSIUM SALTP-HYDROXYBENZOIC ACID MONOPOTASSIUM SALTBENZOIC ACID, 4-HYDROXY-, MONOPOTASSIUM SALT

10 more reported names

BENZOIC ACID, P-HYDROXY-, MONOPOTASSIUM SALTBENZOIC ACID, 4-HYDROXY-, POTASSIUM SALT (1:1)RefChem:175568POTASSIUM PARABEN [INCI]potassium;4-hydroxybenzoatep-hydroxybenzoic acid potassium saltP-HYDROXYBENZOICACIDPOTASSIUMSALTpotassium parahydroxybenzoateMSK2535KSafinamide Impurity 45 Potassium Salt

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID20168378

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 PARABEN

INCI name

POTASSIUM PARABEN

Description

Potassium 4-hydroxybenzoate

Record provenance

Inventory reference: 37011
Imported identity: POTASSIUM PARABEN
Source update: 11/08/2020

European Commission CosIng source notes

Annex records for POTASSIUM PARABEN

Annex V Restriction reference

Entry 12

4-HYDROXYBENZOIC ACID / METHYLPARABEN /POTASSIUM ETHYLPARABEN /POTASSIUM PARABEN /SODIUM METHYLPARA…

CAS: 99-96-7 /99-76-3 /36457-19-9 /16782-08-4 /5026-62-0 /35285-68-8 /120-47-8 /114-63-6 /26112-0-2 /69959-44-0

EC: 202-804-9 /202-785-7 /253-048-1 /240-830-2 /225-714-1 /252-487-6 /204-399-4 /204-051-1 /247-464-2 /274-235-4

Key data

CAS

16782-08-4

240-830-2

Restriction

V/12

Function

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.

#22736 · POTASSIUM PARABEN

Ingredients with overlapping formulation functions

POTASSIUM ETHYLPARABENPRESERVATIVE

POTASSIUM GLYCERYL TRICETEARATE/CITRATEBINDING, BULKING, EMULSION STABILISING, PRESERVATIVE, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLI…

POTASSIUM METABISULFITEHAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING

POTASSIUM METHYLPARABENPRESERVATIVE

POTASSIUM PROPIONATEPRESERVATIVE

POTASSIUM PROPYLPARABENPRESERVATIVE

POTASSIUM SALICYLATEANTIMICROBIAL, PRESERVATIVE

POTASSIUM SORBATEFRAGRANCE, 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 PARABEN appears in the CosIng inventory

The CosIng inventory lists POTASSIUM PARABEN 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 PARABEN is also tagged with 1 cosmetic function 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 PARABEN 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 PARABEN reads: "V/12". 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 PARABEN carries the following function designation(s):

PRESERVATIVE

CAS 16782-08-4 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.

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Source note for POTASSIUM PARABEN

This page combines the CosIng inventory entry for POTASSIUM PARABEN 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 PARABEN and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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