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InventoryRef 3914602/03/2011

BUTYL ISOVALERATE

Butyl 3-methylbutanoate

BUTYL 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 109-19-3
CAS 109-19-3PubChem CID 7981

Butyl isovalerate

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

IUPAC name
butyl 3-methylbutanoate
Molecular formula
C9H18O2
Molecular weight
158.24 g/mol
Exact mass
158.130679813 Da
XLogP3
2.6
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Butyl isopentanoaten-Butyl isovalerate1-Butyl isovalerateButyl isovalerianateButyl 3-methylbutyrateButanoic acid, 3-methyl-, butyl esterIsovaleric acid, butyl estern-Butyl isopentanoate
16 more reported names
n-Butyl 3-methylbutanoateFEMA No. 2218Butyl isovalerate (natural)4UX6V9QM2Jn-Butyl iso-valerateNSC 6187HSDB 6383UNII-4UX6V9QM2JEINECS 203-654-7BRN 1752803BUTYL 3-METHYL BUTYRATE3-Methylbutyric acid butyl esterAI3-33584NSC-6187BUTYL ISOVALERATE [FCC]BUTYL 3-METHYL BUTANOATE
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match7981

Attributed physical-property, hazard, environmental and use annotations.

  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H226 (97.4%): Flammable liquid and vapor [Warning Flammable liquids] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 1684 reports by companies from 7 notifications to the ECHA C&L Inventory.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • NFPA Health Rating: 0 - Materials that, under emergency conditions, would offer no hazard beyond that of ordinary combustible materials. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Fire Rating: 2 - Materials that must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur. Materials would not under normal conditions form hazardous atmospheres with air, but under high ambient temperatures or under moderate heating could release vapor in sufficient quantities to produce hazardous atmospheres with air. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Instability Rating: 0 - Materials that in themselves are normally stable, even under fire conditions. Source: Hazardous Substances Data Bank (HSDB)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 BUTYL ISOVALERATE

INCI name

BUTYL ISOVALERATE

Description

Butyl 3-methylbutanoate

Record provenance

Inventory reference
39146
Imported identity
BUTYL ISOVALERATE
Source update
02/03/2011
European Commission CosIng source notes
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Key data

CAS
109-19-3
EC
203-654-7
Restriction
—
Function
PERFUMING
Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

BUTYL FORMATEPERFUMING
BUTYL HEXANOATEPERFUMING
BUTYL ISOBUTYRATEPERFUMING
BUTYL ISOHEXANOATEPERFUMING
BUTYL LAEVULINATEPERFUMING
BUTYL OCTANOATEPERFUMING
BUTYL PHENETHYL ETHERPERFUMING
BUTYL 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 chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How BUTYL ISOVALERATE appears in the CosIng inventory

The CosIng inventory lists BUTYL 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.

BUTYL 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

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

CAS 109-19-3 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 BUTYL ISOVALERATE

This page reproduces the CosIng inventory entry for BUTYL 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 BUTYL 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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