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CAS 659-70-1 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.

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InventoryRef 4031902/03/2011

ISOAMYL ISOVALERATE

3-Methylbutyl 3-methylbutanoate

ISOAMYL 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 659-70-1

CAS 659-70-1PubChem CID 12613

Isoamyl isovalerate

Isoamyl isovalerate is a fatty acid ester. — ChEBI

IUPAC name: 3-methylbutyl 3-methylbutanoate

Molecular formula: C10H20O2
Molecular weight: 172.26 g/mol
Exact mass: 172.146329876 Da
XLogP3: 3.1
Topological polar surface area: 26.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Isopentyl 3-methylbutanoateIsopentyl isopentanoateSolusterolIsopentyl isovalerateApple essenceIsoamyl valerianateiso-Amyl isovalerate3-Methylbutyl isovalerate

16 more reported names

Butanoic acid, 3-methyl-, 3-methylbutyl esterIsovaleric acid, isopentyl esterIsoamyl 3-methylbutanoateIsoamyl isovalerianateIsopentyl 3-methylbutyrateIsoamyl 3-methylbutyrateIsoamyl isopentanoate3-Methylbutyl 3-methylbutyrateIsopentyl alcohol, isovalerateFEMA No. 2085NSC 6565Isoamyl isovalerate (natural)CCRIS 1348AI3-06045NSC-6565EINECS 211-536-1

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:31727
ChEMBL:CHEMBL3189076
EPA DTXSID:DTXSID8044757
PubMed:22262935
PubMed:21682865
PubMed:19064096
PubMed:18007515

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 ISOAMYL ISOVALERATE

INCI name

ISOAMYL ISOVALERATE

Description

3-Methylbutyl 3-methylbutanoate

Record provenance

Inventory reference: 40319
Imported identity: ISOAMYL ISOVALERATE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for ISOAMYL ISOVALERATE

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Key data

CAS

659-70-1

211-536-1

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

ISOAMYL GERANATEPERFUMING

ISOAMYL HEPTANOATEPERFUMING

ISOAMYL HEXANOATEPERFUMING

ISOAMYL ISOBUTYRATEPERFUMING

ISOAMYL OCTANOATEPERFUMING

ISOAMYL PHENETHYL ETHERPERFUMING

ISOAMYL PHENYLACETATEPERFUMING

ISOAMYL PROPIONATEPERFUMING

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 ISOAMYL ISOVALERATE appears in the CosIng inventory

The CosIng inventory lists ISOAMYL 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.

ISOAMYL 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

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

PERFUMING

CAS 659-70-1 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 ISOAMYL ISOVALERATE

This page reproduces the CosIng inventory entry for ISOAMYL 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 ISOAMYL 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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