What does the restriction note for SODIUM DEHYDROACETATE mean?

The restriction field for SODIUM DEHYDROACETATE reads: V/13. 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 4418-26-2?

CAS 4418-26-2 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 SODIUM DEHYDROACETATE?

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 3785111/08/2020

SODIUM DEHYDROACETATE

Sodium 1-(3,4-dihydro-6-methyl-2,4-dioxo-2H-pyran-3-ylidene)ethanolate

SODIUM DEHYDROACETATE is linked to 1 EU annex record on this page. Inventory note: V/13.

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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	Evidence linked Permitted list with conditions Open this evidence	1	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	Evidence linked Permitted list with conditions Open this evidence	1	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	Evidence linked Restricted Open this evidence	1	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 4418-26-2

CAS 4418-26-2PubChem CID 23721629

Sodium Dehydroacetate

Sodium dehydroacetate is a white powder. Used as a fungicide, plasticizer, toothpaste, preservative in food. — CAMEO Chemicals

IUPAC name: sodium 3-acetyl-6-methylpyran-3-ide-2,4-dione

Molecular formula: C8H7NaO4
Molecular weight: 190.13 g/mol
Exact mass: 190.02420298 Da
Topological polar surface area: 60.4 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 5
Covalent units: 2
Defined stereocentres: 0

Also known as

HarvenDHA-sodiumPrevanNew Side S 01Dehydroacetic acid, sodium saltDHA-SSodium Dehydroacetic AcidSodium 3-acetyl-6-methyl-2,4-pyrandione

16 more reported names

Kyselina dehydroacetova sodna sul2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, ion(1-), sodium8W46YN971GSodium 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione sodium salt2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, sodium salt2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, monosodium salt3-(1-Hydroxyethylidene)-6-methyl-2H-pyran-2,4(3H)-dione, sodium salt4-Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo, delta-lactone, sodium derivativeRefChem:183852sodium 3-acetyl-6-methyl-4-oxo-4H-pyran-2-olate224-580-1sodium 3-acetyl-6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-idedehydroacetic acid sodiumSodium 1-(3,4-dihydro-6-methyl-2,4-dioxo-2H-pyran-3-ylidene)ethanolateDehydroacetic acid (sodium)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID7026029

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 SODIUM DEHYDROACETATE

INCI name

SODIUM DEHYDROACETATE

INN name

sodium dehydroacetate

Description

Sodium 1-(3,4-dihydro-6-methyl-2,4-dioxo-2H-pyran-3-ylidene)ethanolate

Record provenance

Inventory reference: 37851
Imported identity: SODIUM DEHYDROACETATE
Source update: 11/08/2020

European Commission CosIng source notes

Annex records for SODIUM DEHYDROACETATE

Annex V Restriction reference

Entry 13

Dehydroacetic acid / SODIUM DEHYDROACETATE

CAS: 520-45-6 / 4418-26-2 / 16807-48-0

EC: 208-293-9 / 224-580-1 / -

Key data

CAS

4418-26-2

224-580-1

Restriction

V/13

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.

#26573 · SODIUM DEHYDROACETATE

The 5 markets that hold a rule for this substance do not classify it the same way.

restricted: South Korea
permitted on a positive list: European Union Great Britain New Zealand ASEAN

See every substance the markets disagree about

Ingredients with overlapping formulation functions

SODIUM BENZOATEANTICORROSIVE, FRAGRANCE, PRESERVATIVE

SODIUM BISULFITEANTIOXIDANT, HAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING

SODIUM BUTYLPARABENPRESERVATIVE

SODIUM CYCLODEXTRIN BUTYLSULFONATEABSORBENT, PRESERVATIVE, SOLVENT, SURFACTANT - CLEANSING

SODIUM ETHYLPARABENPRESERVATIVE

SODIUM FORMATEPRESERVATIVE

SODIUM HYDROXYMETHYLGLYCINATEHAIR CONDITIONING, PRESERVATIVE

SODIUM IODATEPRESERVATIVE

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 SODIUM DEHYDROACETATE appears in the CosIng inventory

The CosIng inventory lists SODIUM DEHYDROACETATE 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.

SODIUM DEHYDROACETATE 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

SODIUM DEHYDROACETATE 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 SODIUM DEHYDROACETATE reads: "V/13". 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, SODIUM DEHYDROACETATE carries the following function designation(s):

PRESERVATIVE

CAS 4418-26-2 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 SODIUM DEHYDROACETATE

This page combines the CosIng inventory entry for SODIUM DEHYDROACETATE 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 SODIUM DEHYDROACETATE 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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