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CAS 32665-23-9 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 3970302/03/2011

ISOPROPYL ISOVALERATE

Isopropyl 3-methylbutanoate

ISOPROPYL 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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 32665-23-9

CAS 32665-23-9PubChem CID 61914

Isopropyl isovalerate

Isopropyl 3-methylbutanoate is a fatty acid ester. — ChEBI

IUPAC name: propan-2-yl 3-methylbutanoate

Molecular formula: C8H16O2
Molecular weight: 144.21 g/mol
Exact mass: 144.115029749 Da
XLogP3: 2.2
Topological polar surface area: 26.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Isopropyl 3-methylbutanoateIsopropyl isopentanoateIsopropyl isovalianateiso-Propyl iso-valerate1-Methylethyl 3-methylbutanoateIsopropyl 3-methylbutyrateButanoic acid, 3-methyl-, 1-methylethyl esterFEMA No. 2961

16 more reported names

Isovaleric acid, isopropyl esterUNII-7EVG31L4J87EVG31L4J8EINECS 251-145-3AI3-33617FEMA 2961ISOPROPYL ISOVALERATE [FHFI]RefChem:149824Isopropyl 3-methylbutanoic acid251-145-3ZOIRKXLFEHOVER-UHFFFAOYSA-NisopropylisovaleratIsopropyl 3-methylbutanoate #CHEBI:1799393-methyl-butyric acid isopropyl esterDA-33481

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External database identifiers

ChEBI:CHEBI:179939
EPA DTXSID:DTXSID6067707
PubMed:15997234

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 ISOPROPYL ISOVALERATE

INCI name

ISOPROPYL ISOVALERATE

Description

Isopropyl 3-methylbutanoate

Record provenance

Inventory reference: 39703
Imported identity: ISOPROPYL ISOVALERATE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for ISOPROPYL ISOVALERATE

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Key data

CAS

32665-23-9

251-145-3

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

ISOPROPYL BUTYRATEPERFUMING

ISOPROPYL CINNAMATEPERFUMING

ISOPROPYL CYCLOHEXYLPROPIONATEFRAGRANCE, PERFUMING

ISOPROPYL HEXANOATEPERFUMING

ISOPROPYL MYRISTATEBINDING, FRAGRANCE, PERFUMING, SKIN CONDITIONING - EMOLLIENT

ISOPROPYL OCTAHYDONAPHTHALENONEPERFUMING

ISOPROPYL OCTANOATEPERFUMING

ISOPROPYL PALMITATEBINDING, FRAGRANCE, PERFUMING, SKIN CONDITIONING - EMOLLIENT

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 ISOPROPYL ISOVALERATE appears in the CosIng inventory

The CosIng inventory lists ISOPROPYL 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.

ISOPROPYL 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

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

PERFUMING

CAS 32665-23-9 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 ISOPROPYL ISOVALERATE

This page reproduces the CosIng inventory entry for ISOPROPYL 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 ISOPROPYL 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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