NOAEL Data REACH Registered Cosmetic Ingredient

2H-Pyran-2-one, 6-butyltetrahydro-

Also known as: 5-Butyl-5-hydroxypentanoic acid lactone, delta-Nonalactone

CAS 3301-94-8

2H-Pyran-2-one, 6-butyltetrahydro- (CAS 3301-94-8) is a chemical substance. Key regulatory status: REACH registered, 3 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.

View cosmetic safety profile for Delta-Nonalactone →

SOURCE noael studies public
NOAEL studies
10
SOURCE chemical inventory jurisdictions
Regulatory lists
3
SOURCE eu clp annex vi
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 8 fields
Name
2H-Pyran-2-one, 6-butyltetrahydro-
CAS Number
3301-94-8
DTXSID
DTXSID70863149
Molecular Formula
C9H16O2
InChI Key
PXRBWNLUQYZAAX-UHFFFAOYSA-N
Monoisotopic Mass
156.11503
Synonyms
5-Butyl-5-hydroxypentanoic acid lactonedelta-Nonalactone

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 4 records
FragranceFlavouring and nutrient

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 3 records
ListKeywordSource
IFRA TransparencyIFRAIFRA
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)FDAUnited States Food and Drug Administration (FDA)
EuropeEuropean CommissionFl@vis

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 10 of 10 studies
ValueUnitEndpointRouteSpeciesSource
DMB99B4WCFUNIIFDA UNII substance identifier--openFDA substances
DMB99B4WCFUNIIFDA UNII substance identifier--openFDA substances
DMB99B4WCFUNIIFDA UNII substance identifier--openFDA substances
DMB99B4WCFUNIIFDA UNII substance identifier--openFDA substances
-%Incidence of positive responsesDermalHumanNTP_ICE_skin_sensitization
6750ug/cm2Induction dose per skin areaDermalHumanNTP_ICE_skin_sensitization
=112mg/kg bw/dayNOAELoralRatToxValDB_EFSA
=112mg/kg bw/dayNOAELoral: gavageRatEFSA_OpenFoodTox_EFSA_ReferencePoints.xlsx
=112mg/kg bw/dayNOAELoral: gavageRatEFSA_OpenFoodTox_EFSA_ReferencePoints.xlsx
3unitlessRelative reliability scoreDermalHumanNTP_ICE_skin_sensitization

Showing 10 of 10 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
Registered6-butyltetrahydro-2H-pyran-2-one221-974-5ECHA overview →

Australian Status (AICIS)

Australian industrial chemicals inventory status and applicable conditions.

SOURCE AICIS inventory 1 records
Inventory Status
listed

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Fragrance
View full cosmetic safety profile →

Food Safety Data

Same-CAS food additive, ADI, and GRAS records where available.

SOURCE EFSA / FDA GRAS 1 records

1 food-safety record found.

View full food safety profile →

Cannabis Data

Same-CAS cannabis compliance and lab records where available.

SOURCE Cannabis regulatory / lab data efsa substances

1 cannabis record found in efsa substances.

View full cannabis profile →

Frequently Asked Questions

What is the NOAEL for 2H-Pyran-2-one, 6-butyltetrahydro-?

2H-Pyran-2-one, 6-butyltetrahydro- has 10 NOAEL studies in the database. The lowest reported value is DMB99B4WCF UNII. Source: openFDA substances.

What regulatory lists include 2H-Pyran-2-one, 6-butyltetrahydro-?

2H-Pyran-2-one, 6-butyltetrahydro- appears on 3 regulatory/inventory lists including IFRA Transparency, food_additive; Substances Added to Food (formerly EAFUS) (2/2019), Europe. Source: EPA CPDat.

Is 2H-Pyran-2-one, 6-butyltetrahydro- used in cosmetics?

Yes, 2H-Pyran-2-one, 6-butyltetrahydro- is also indexed as a cosmetic ingredient under the name Delta-Nonalactone. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for 2H-Pyran-2-one, 6-butyltetrahydro- come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, CosIng / Ingredients DB, EFSA / FDA GRAS, cannabis regulatory/lab databases. All data traces to primary regulatory sources and is updated from official government databases.

Is 2H-Pyran-2-one, 6-butyltetrahydro- used outside industrial chemicals?

2H-Pyran-2-one, 6-butyltetrahydro- also appears in cosmetics, food safety, cannabis databases.