Is BENZYL ACETONE safe to use in EU cosmetics?

BENZYL ACETONE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 2550-26-7?

CAS 2550-26-7 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 BENZYL ACETONE?

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 3922202/03/2011

BENZYL ACETONE

4-Phenylbutan-2-one

BENZYL ACETONE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 2550-26-7

CAS 2550-26-7PubChem CID 17355

Benzyl acetone

4-phenylbutan-2-one is a ketone. — ChEBI

IUPAC name: 4-phenylbutan-2-one

Molecular formula: C10H12O
Molecular weight: 148.20 g/mol
Exact mass: 148.088815002 Da
XLogP3: 1.8
Topological polar surface area: 17.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

RefChem:118924BENZYLACETONE4-Phenyl-2-butanone4-Penylbutan-2-one2-Butanone, 4-phenyl-1-Phenyl-3-butanoneMethyl phenethyl ketonePhenethyl methyl ketone

16 more reported names

Methyl 2-phenylethyl ketone4-Phenyl-butan-2-oneMethyl phenylethyl ketoneNSC 8132-Phenylethyl methyl ketoneNSC 44829UZM5QH16YWNSC-813NSC-44829beta-Phenylethyl methyl ketoneCAS-2550-26-7EINECS 219-847-4UNII-UZM5QH16YWBRN 1907123AI3-151234-phenylbutanone

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:195507
ChEMBL:CHEMBL1490851
EPA DTXSID:DTXSID6033241
PubMed:23381774
PubMed:22692228
PubMed:22548747
PubMed:22467646
PubMed:22458597
PubMed:22384116
PubMed:22279375
PubMed:22143541
PubMed:22065139
PubMed:22028833
PubMed:21750802
PubMed:21589253

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for BENZYL ACETONE

INCI name

BENZYL ACETONE

Description

4-Phenylbutan-2-one

Record provenance

Inventory reference: 39222
Imported identity: BENZYL ACETONE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for BENZYL ACETONE

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Key data

CAS

2550-26-7

219-847-4

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

BENZONITRILEPERFUMING

BENZOTHIAZOLEPERFUMING

BENZYL ACETATEFRAGRANCE, PERFUMING

BENZYL ACETOACETATEPERFUMING

BENZYL ALCOHOLPERFUMING, PRESERVATIVE, SOLVENT, VISCOSITY CONTROLLING

BENZYL BENZOATEANTIMICROBIAL, PERFUMING, SOLVENT

BENZYL BUTYRATEPERFUMING

BENZYL CINNAMATEPERFUMING

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 BENZYL ACETONE appears in the CosIng inventory

The CosIng inventory lists BENZYL ACETONE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

BENZYL ACETONE 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

BENZYL ACETONE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, BENZYL ACETONE carries the following function designation(s):

PERFUMING

CAS 2550-26-7 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 BENZYL ACETONE

This page reproduces the CosIng inventory entry for BENZYL ACETONE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research BENZYL ACETONE 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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