Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.
- beauty
- cleaning
4-Pentanolide
CAS 219630-19-0
Also registered as 2 other CAS numbers
57129-69-8 · 108-29-2
Concern score
Not assessed — no hazard data yet.
4-Pentanolide in plain language
On cosmetic ingredient lists it appears as “Gamma-valerolactone”.
Also known as Gamma-valerolactone · .gamma.-valerolactone · (rs)-.gamma.-pentalactone · (±)-.gamma.-methylbutyrolactone · .gamma.-methyl-.gamma.-butyrolactone · 4-HYDROXYPENTANOIC acid .gamma.-lactone
Show all 30 names
5-Methyloxolan-2-one · Pentanoic acid, 4-HYDROXY-, .gamma.-lactone · Valeric acid, 4-HYDROXY-, .gamma.-lactone · (+/-)-.gamma.-methylbutyrolactone · (.+-.)-4-Methylbutyrolactone · (.+-.)-γ-Methylbutyrolactone · (.+-.)-γ-Pentalactone · (.+-.)-γ-Valerolactone · (RS)-γ-Pentalactone · 2(3H)-Furanone, dihydro-5-methyl- · 3-Methyl-n-γ-butyrolactone · 4-Hydroxypentanoic acid lactone · 4-Hydroxyvaleric acid lactone · 4-Methyl-4-hydroxybutanoic acid lactone · 4-Methyl-gamma-butyrolactone · 4-Valerolactone · 5-METHYLDIHYDRO-2(3H)-FURANONE · 5-Methyltetrahydro-2-furanone · DIHYDRO-5-METHYL-2(3H)-FURANONE · Dihydro-5-methyl-2(3H)-furanone; gamma-Valerolactone · Dihydro-5-methylfuran-2(3H)-one · Pentano-1,4-lactone · gamma-Pentalactone · γ-Valerolactone
Used in cosmetics as a fragrance ingredient.
- Perfuming
- Fragrance
- Flavouring
- 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-Pentanolide appears in these published regulatory listings.
- 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 4 composition records across product categories including Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Fragrance, Flavouring and nutrient.
- EPA CPDat observed this chemical in 4 composition records across product categories including Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Fragrance, Flavouring and nutrient.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-Pentanolide. 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-Pentanolide yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
- Open →
EPA Chemical and Products Database
exposure · updated February 8, 2019
- 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
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Avoid
Where it has been recorded
How often EPA CPDat has listed 4-Pentanolide in a product composition. These are source records, not Greenveil catalog products.
Source records
4
Named organisations
5
Cleaning products and household care
Typical roles
PerfumingFragranceFlavouring