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CAS 589-59-3 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.

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InventoryRef 4034202/03/2011

ISOBUTYL ISOVALERATE

2-Methylpropyl 3-methylbutanoate

ISOBUTYL ISOVALERATE 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 589-59-3

CAS 589-59-3PubChem CID 11514

Isobutyl isovalerate

2-Methylpropyl 3-methylbutanoate is a fatty acid ester. — ChEBI

IUPAC name: 2-methylpropyl 3-methylbutanoate

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

Butanoic acid, 3-methyl-, 2-methylpropyl ester2-Methylpropyl 3-methylbutyrateIsobutylisovalerateIsobutyl isovalerate (natural)FEMA No. 3369NSC 69932-methylpropyl-3-methylbutyrateEINECS 209-653-8

16 more reported names

UNII-6VCJ0UB168BRN 17026496VCJ0UB168AI3-33586NSC-6993FEMA 3369ISOBUTYL ISOVALERATE [MI]4-02-00-00898 (Beilstein Handbook Reference)2-METHYL PROPYL 3-METHYL BUTYRATE2-METHYLPROPYL 3-METHYLBUTYRATE [FHFI]2-METHYL PROPYL 3-METHYL BUTYRATE [FCC]RefChem:1490892-Methylpropyl 3-methylbutanoic acid209-653-8KEBDNKNVCHQIJU-UHFFFAOYSA-NIsovaleric acid, isobutyl ester

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External database identifiers

ChEBI:CHEBI:89086
EPA DTXSID:DTXSID5060431
PubMed:14698242

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 ISOBUTYL ISOVALERATE

INCI name

ISOBUTYL ISOVALERATE

Description

2-Methylpropyl 3-methylbutanoate

Record provenance

Inventory reference: 40342
Imported identity: ISOBUTYL ISOVALERATE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for ISOBUTYL ISOVALERATE

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Key data

CAS

589-59-3

209-653-8

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

ISOBUTYL FURYLPROPIONATEPERFUMING

ISOBUTYL HEPTYLATEPERFUMING

ISOBUTYL HEXANOATEPERFUMING

ISOBUTYL ISOBUTYRATEPERFUMING

ISOBUTYL LINALOOLPERFUMING

ISOBUTYL METHYLAMINOBENZOATEPERFUMING

ISOBUTYL METHYLBUTYRATEPERFUMING

ISOBUTYL PHENYLACETATEPERFUMING

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 ISOBUTYL ISOVALERATE appears in the CosIng inventory

The CosIng inventory lists ISOBUTYL ISOVALERATE 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.

ISOBUTYL ISOVALERATE 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

ISOBUTYL ISOVALERATE 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, ISOBUTYL ISOVALERATE carries the following function designation(s):

PERFUMING

CAS 589-59-3 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 ISOBUTYL ISOVALERATE

This page reproduces the CosIng inventory entry for ISOBUTYL ISOVALERATE 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 ISOBUTYL ISOVALERATE 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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