What does the restriction note for DEHYDROACETIC ACID mean?

The restriction field for DEHYDROACETIC ACID reads: V/13. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

InventoryRef 3318511/08/2020

DEHYDROACETIC ACID

Q: How do I check if my formula contains DEHYDROACETIC ACID?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione

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

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Inventory details for DEHYDROACETIC ACID

INCI name

DEHYDROACETIC ACID

INN name

dehydroacetic acid

Description

3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione

Annex records for DEHYDROACETIC ACID

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

520-45-6 / 771-03-9 / 16807-48-0

208-293-9 / 212-227-4 / -

Restriction

V/13

Function

PRESERVATIVE

How DEHYDROACETIC ACID appears in the CosIng inventory

The CosIng inventory lists DEHYDROACETIC ACID 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.

DEHYDROACETIC ACID 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

DEHYDROACETIC ACID 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 DEHYDROACETIC ACID 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, DEHYDROACETIC ACID carries the following function designation(s):

PRESERVATIVE

CAS 520-45-6 / 771-03-9 / 16807-48-0 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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Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for DEHYDROACETIC ACID

This page combines the CosIng inventory entry for DEHYDROACETIC ACID 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 DEHYDROACETIC ACID 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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Tools & next steps

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