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  • cleaning

4-(tert-Pentyl)-cyclohexanone

CAS 16587-71-6

4-(tert-Pentyl)-cyclohexanone chemical structure

Concern score

Not assessed — no hazard data yet.

4-(tert-Pentyl)-cyclohexanone in plain language

What it is

On cosmetic ingredient lists it appears as “Isopentylcyclohexanone”.

Also known as Isopentylcyclohexanone · 4-TERT-PENTYLCYCLOHEXANONE · 4-(2-Methylbutan-2-yl)cyclohexan-1-one · 4-(1,1-Dimethylpropyl)cyclohexanone · 4-07-00-00096 (Beilstein Handbook Reference) · 4-ISOPENTYLCYCLOHEXANONE

Show all 12 names

4-t-Amylcyclohexanone · 4-tert-Amylcyclohexanone · 4-tert-Pentylcyclohexanone; Amylocyclohexanone · Cyclohexanone, 4-(1,1-dimethylpropyl)- · Cyclohexanone, 4-tert-pentyl- · Orivone

What it does

Used in cosmetics as a fragrance ingredient.

  • Perfuming
  • Fragrance
  • Deodorant
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. 4-(tert-Pentyl)-cyclohexanone appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • EUCosIngActiveIsopentylcyclohexanone is the organic compound that conforms to the formula
    • Isopentylcyclohexanone is the organic compound that conforms to the formulaSource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Deodorizer, Fragrance.
    • EPA CPDat observed this chemical in 2 composition records across product categories including Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Deodorizer, Fragrance.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for 4-(tert-Pentyl)-cyclohexanone. 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 4-(tert-Pentyl)-cyclohexanone yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated 2022-06-22

    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 →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)
Openfda substance

moellhausen.com

Read →

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 4-(tert-Pentyl)-cyclohexanone in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Named organisations

4

Cleaning products and household care

Typical roles

PerfumingFragranceDeodorant
See products using 4-(tert-Pentyl)-cyclohexanone →