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Trimethyl hydroxypentyl isobutyrate

CAS 25134-27-4

Also registered as 4 other CAS numbers

129383-05-7 · 141136-23-4 · 855004-42-1 · 25265-77-4

Concern score

Not assessed — no hazard data yet.

Trimethyl hydroxypentyl isobutyrate in plain language

What it is

Also known as Texanol · 2,2,4-TRIMETHYL-1,3-PENTANEDIOL monoisobutylate · 2,2,4-TRIMETHYL-1,3-PENTANEDIOL monoisobutyrate · Isobutyric acid, ester with 2,2,4-TRIMETHYL-1,3-PENTANEDIOL · Trimethylpentanediol monoisobutyrate · 2,2,4-Trimethyl-1,3-neopentyl glycol monoisobutyrate

Show all 14 names

2,2,4-Trimethyl-1,3-pentanediol mono(2-methylpropanoate) · 3-Pentanediol,2,2,4-trimethyl-monoisobutyrate · Alcohol ester 12 · Ester 12 · Ester alcohol · Grshy 1800 · NX795 · texanol (ester alcohol)

What it does

Used in cosmetics as a plasticiser.

  • Plasticiser
  • Surfactant
  • Film former
  • Solvent
  • Fragrance
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Trimethyl hydroxypentyl isobutyrate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2780 composition records across product categories including Construction and building materials, Raw materials, Construction. EPA CPDat classifies this chemical for functional uses including Solvent, Plasticizer, Surfactant (surface active agent).
    • EPA CPDat observed this chemical in 2780 composition records across product categories including Construction and building materials, Raw materials, Construction. EPA CPDat classifies this chemical for functional uses including Solvent, Plasticizer, Surfactant (surface active agent).Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as mixture.
    • openFDA substance registry classifies this ingredient as mixture.Source →

Expert safety opinions

No expert opinion on file for Trimethyl hydroxypentyl isobutyrate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Trimethyl hydroxypentyl isobutyrate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated march 7, 2017

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Trimethyl hydroxypentyl isobutyrate in a product composition. These are source records, not Greenveil catalog products.

Source records

2,780

Named organisations

6

Construction and building materialsRaw materialsConstructionHome maintenanceSpecialty occupational productsCleaning products and household care

Typical roles

PlasticiserSurfactantFilm formerSolventFragrance
See products using Trimethyl hydroxypentyl isobutyrate →