Is AMYL BUTYRATE safe to use in EU cosmetics?

AMYL BUTYRATE 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 540-18-1?

CAS 540-18-1 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 AMYL BUTYRATE?

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 3902702/03/2011

AMYL BUTYRATE

Pentyl Butanoate

AMYL BUTYRATE 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 540-18-1

CAS 540-18-1PubChem CID 10890

Amyl butyrate

Pentyl butyrate is the butyrate ester of pentan-1-ol. It has a role as a metabolite. It is functionally related to a pentan-1-ol. — ChEBI

IUPAC name: pentyl butanoate

Molecular formula: C9H18O2
Molecular weight: 158.24 g/mol
Exact mass: 158.130679813 Da
XLogP3: 2.7
Topological polar surface area: 26.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

PENTYL BUTYRATEn-Amyl butyrateButanoic acid, pentyl ester1-Pentyl butyrateAmyl butanoateButyric acid, pentyl estern-Pentyl n-butyraten-Pentyl butyrate

16 more reported names

FEMA No. 20593Q2JP0VD8JNSC-7935CHEBI:87684RefChem:162875208-739-2n-Pentyl butanoateN-Amyl n-butyrateAmyl butyrate (natural)Butanoic acid pentyl esterButyric Acid Amyl EsterNSC 7935EINECS 208-739-2BRN 1752307AI3-06124Pentyl butanoate, 9CI

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:87684
ChEMBL:CHEMBL3183048
EPA DTXSID:DTXSID4041604
PubMed:22962838
PubMed:22593687
PubMed:21887525
PubMed:19274689
PubMed:17005854
PubMed:16478257
PubMed:11958633

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 AMYL BUTYRATE

INCI name

AMYL BUTYRATE

Description

Pentyl Butanoate

Record provenance

Inventory reference: 39027
Imported identity: AMYL BUTYRATE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for AMYL BUTYRATE

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Key data

CAS

540-18-1

208-739-2

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Official EU ingredient-name evidence

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

#1892 · AMYL BUTYRATE

Ingredients with overlapping formulation functions

AMBROXIDEFRAGRANCE; PERFUMING

AMIDINOPROLINEFRAGRANCE, HUMECTANT, PERFUMING, SKIN CONDITIONING

AMYL ALCOHOLPERFUMING

AMYL BENZOATEFRAGRANCE, PERFUMING

AMYL CINNAMALPERFUMING

AMYL CINNAMATEPERFUMING

AMYL CYCLOPENTANONE PROPANONEPERFUMING

AMYL ETHYL KETONEPERFUMING

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 AMYL BUTYRATE appears in the CosIng inventory

The CosIng inventory lists AMYL BUTYRATE 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.

AMYL BUTYRATE 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

AMYL BUTYRATE 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, AMYL BUTYRATE carries the following function designation(s):

PERFUMING

CAS 540-18-1 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.

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Source note for AMYL BUTYRATE

This page reproduces the CosIng inventory entry for AMYL BUTYRATE 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 AMYL BUTYRATE 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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