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2-Pentanone

CAS 107-87-9

2-Pentanone chemical structure

Concern score

Not assessed — no hazard data yet.

2-Pentanone in plain language

What it is

On cosmetic ingredient lists it appears as “Pentanone”.

Also known as Pentanone · Methyl propyl ketone · Methyl n-propyl ketone · Mpk · Pentan-2-one · 4-Methyl-2-butanone

Show all 18 names

Ethyl acetone · Ethylacetone · Methyl-propyl-cetone · Methylpropyl ketone · Metylopropyloketon · Pentan-2-on · Propyl methyl ketone · methyl n-propyl ketone (2-pentanone)(vp = 27.6 @ 68f) · methyl n-propyl ketone (vapor pressure 27.8 mm hg @ 68f) · methyl n-propyl ketone (vp = 27.8 @ 68f) · methyl propyl ketone (2-pentanone) · pentan-2-ona

What it does

Used in cosmetics as a solvent.

  • Solvent
  • Antioxidant
  • Fragrance
  • Flavouring
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. 2-Pentanone appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Industrial
  • EUCosIngActivePentanone is the organic compound that conforms to the formula:
    • Pentanone is the organic compound that conforms to the formula:Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 852 composition records across product categories including Construction and building materials, Raw materials, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Solvent, Flavouring and nutrient, Fragrance.
    • EPA CPDat observed this chemical in 852 composition records across product categories including Construction and building materials, Raw materials, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Solvent, Flavouring and nutrient, 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 2-Pentanone. 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 2-Pentanone 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 february 5, 2020

    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 →

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 2-Pentanone in a product composition. These are source records, not Greenveil catalog products.

Source records

852

Named organisations

6

Construction and building materialsRaw materialsSpecialty occupational productsVehicleHome maintenanceLaboratory supplies

Typical roles

SolventAntioxidantFragranceFlavouring
See products using 2-Pentanone →