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GREENVEIL

  • beauty
  • cleaning

TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE

CAS 34686-71-0

Concern score

Not assessed — no hazard data yet.

TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE in plain language

What it is

Also known as 6-(Pent-2-en-1-yl)tetrahydro-2H-pyran-2-one · 7-Decen-5-olide · 6-(Pent-2-en-1-yl)oxan-2-one · 2H-Pyran-2-one, tetrahydro-6-(2-penten-1-yl)- · 2H-Pyran-2-one, tetrahydro-6-(2-pentenyl)- · 7-Decenoic acid, 5-hydroxy-, δ-lactone

Show all 10 names

Dec-7-eno-1,5-lactone · Tetrahydro-6-(2-penten-1-yl)-2H-pyran-2-one · Tetrahydro-6-(2-pentenyl)-2H-pyran-2-one · tetrahydro-6-(2-pentenyl)2h-pyran-2-one

What it does

Used in cosmetics as a fragrance ingredient.

  • Perfuming
  • 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. TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 3 composition records across product categories including Vehicle, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Fragrance, Flavouring and nutrient.
    • EPA CPDat observed this chemical in 3 composition records across product categories including Vehicle, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Fragrance, Flavouring and nutrient.Source →

Expert safety opinions

No expert opinion on file for TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE. 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 TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 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 →

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 TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE in a product composition. These are source records, not Greenveil catalog products.

Source records

3

Named organisations

4

VehicleCleaning products and household care

Typical roles

PerfumingFragranceFlavouring
See products using TETRAHYDRO-6-PENT-2-ENYL-PYRAN-2-ONE →