Fragrance avoidance
Nothing to weigh for this context yet.
We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.
- industrial
2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (6R)-
CAS 51154-96-2
Also registered as 2 other CAS numbers
54814-64-1 · 38733-05-0
Concern score
Not assessed — no hazard data yet.
2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (6R)- in plain language
Also known as 5-HYDROXY-2-DECENOIC acid .delta.-lactone · Massoia lactone · (-)-(6R)-MASSOIALACTONE · (-)-massoialactone · (-)-massoilactone · (-)-massoja decalactone
Show all 25 names
(2R)-2-pentyl-2,3-dihydropyran-6-one · (6R)-6-Pentyl-5,6-dihydro-2H-pyran-2-one · Massoya lactone · (6R)-(-)-Massoialactone · (6R)-5,6-Dihydro-6-pentyl-2H-pyran-2-one · (R)-(-)-Massoialactone · (R)-(-)-Massoilactone · (R)-6-Pentyl-5,6-dihydro-2H-pyran-2-one · (R)-Massoia lactone · 2H-PYRAN-2-ONE, 5,6-DIHYDRO-6-PENTYL-, (r)- · 2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (theta)- · 5,6-Dihydro-6-pentyl-2H-pyran-2-one, (R)- · 5-17-09-00218 (Beilstein Handbook Reference) · 5-HYDROXY-2-DECENOIC acid delta-lactone · 5-Pentylpent-2-en-5-olide · 5-hydroxy-2-decenoic acid lactone · 6-Pentyl-5,6-dihydro-2H-pyran-2-one, (6R)- · Massoy lactone · UNII-847O2V0IOA
Used in consumer products as a flavouring.
- Flavouring
- We haven't assessed a concern score for this ingredient yet.
Regulation
No restrictions found. 2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (6R)- appears in these published regulatory listings.
- Found in consumer products
- Industrial
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Evidence & sources
No graded research studies for 2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (6R)- yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
Allergen profile
Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.
- SoyContains · Oral (ingested)
Source: chemindex_name_match
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Where it has been recorded
How often EPA CPDat has listed 2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (6R)- in a product composition. These are source records, not Greenveil catalog products.
Named organisations
1
Typical roles
Flavouring