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CAS 25265-77-4 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 5985415/10/2010

TRIMETHYL HYDROXYPENTYL ISOBUTYRATE

Propanoic Acid, 2-Methyl-, Monoester with 2,2,4-Trimethyl-1,3-Pentanediol

TRIMETHYL HYDROXYPENTYL ISOBUTYRATE 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 25265-77-4

CAS 25265-77-4PubChem CID 6490

Texanol

2,2,4-trimethyl-1,3-pentanediol monoisobutyrate is a colorless liquid with a mild characteristic odor. Floats on water. (USCG, 1999) — CAMEO Chemicals

IUPAC name: (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate

Molecular formula: C12H24O3
Molecular weight: 216.32 g/mol
Exact mass: 216.17254462 Da
XLogP3: 3.1
Topological polar surface area: 46.5 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

2,2,4-Trimethyl-1,3-pentanediol monoisobutyrateRefChem:897547NX795246-771-9Chissocizer CS 12CS 12ID6ZZH846YIsobutyraldehyde Tishchenko trimer

16 more reported names

Propanoic acid, 2-methyl-, monoester with 2,2,4-trimethyl-1,3-pentanediolPropionic acid, 2-methyl-, monoester with 2,2,4-trimethyl-1,3-pentanediolTrimethyl hydroxypentyl isobutyrate77-68-93-Hydroxy-2,2,4-trimethylpentyl isobutyratePropanoic acid, 2-methyl-, 3-hydroxy-2,2,4-trimethylpentyl esterIsobutyraldehyde trimer2-Methyl-propanoic Acid 3-Hydroxy-2,2,4-trimethylpentyl Ester2,2,4-TRIMETHYL-1,3-PENTANEDIOL 1-ISOBUTYRATE3-Hydroxy-2,2,4-trimethylpentyl 2-methylpropanoate1,3-Pentanediol, 2,2,4-trimethyl-, 1-isobutyrate9LJI14453CIsobutyric Acid 3-Hydroxy-2,2,4-trimethylpentyl EsterUNII-9LJI14453CEINECS 201-049-2component of Texanol

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:229355
ChEMBL:CHEMBL3184970
EPA DTXSID:DTXSID10872295
PubMed:22788106
PubMed:22313149
PubMed:21318004
PubMed:20976153
PubMed:20549228
PubMed:19680930
PubMed:18578351
PubMed:18350903
PubMed:17693786
PubMed:17391238
PubMed:15927564
PubMed:12943003

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 TRIMETHYL HYDROXYPENTYL ISOBUTYRATE

INCI name

TRIMETHYL HYDROXYPENTYL ISOBUTYRATE

Description

Propanoic Acid, 2-Methyl-, Monoester with 2,2,4-Trimethyl-1,3-Pentanediol

Record provenance

Inventory reference: 59854
Imported identity: TRIMETHYL HYDROXYPENTYL ISOBUTYRATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for TRIMETHYL HYDROXYPENTYL ISOBUTYRATE

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Key data

CAS

25265-77-4

246-771-9

Restriction

—

Function

PLASTICISER: Softening and making supple synthetic polymers that otherwise could not be easily deformed, spread or worked out.

Official EU ingredient-name evidence

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

#29259 · TRIMETHYL HYDROXYPENTYL ISOBUTYRATE

Ingredients with overlapping formulation functions

TRIFLUOROPROPYL CYCLOTRISILOXANEPLASTICISER

TRIHEXYLDECYL CITRATEPLASTICISER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

TRILAURYL PHOSPHATEPLASTICISER, SKIN CONDITIONING, SURFACTANT - CLEANSING

TRIMESIC ACIDPLASTICISER

TRIMETHYL PENTANYL DIISOBUTYRATEPLASTICISER

TRIMETHYLPENTANEDIYL DIBENZOATEPLASTICISER

TRIOLEYL CITRATEPLASTICISER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

TRIOLEYL PHOSPHATEPLASTICISER, SKIN CONDITIONING, 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 TRIMETHYL HYDROXYPENTYL ISOBUTYRATE appears in the CosIng inventory

The CosIng inventory lists TRIMETHYL HYDROXYPENTYL ISOBUTYRATE 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.

TRIMETHYL HYDROXYPENTYL ISOBUTYRATE 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

TRIMETHYL HYDROXYPENTYL ISOBUTYRATE 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, TRIMETHYL HYDROXYPENTYL ISOBUTYRATE carries the following function designation(s):

PLASTICISER

CAS 25265-77-4 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 TRIMETHYL HYDROXYPENTYL ISOBUTYRATE

This page reproduces the CosIng inventory entry for TRIMETHYL HYDROXYPENTYL ISOBUTYRATE 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 TRIMETHYL HYDROXYPENTYL ISOBUTYRATE 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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