NOAEL Data REACH Registered Cosmetic Ingredient

4-(tert-Pentyl)-cyclohexanone

Also known as: Cyclohexanone, 4-(1,1-dimethylpropyl)-, Cyclohexanone, 4-tert-pentyl-, 4-tert-Pentylcyclohexanone, 4-07-00-00096, 4-tert-Amylcyclohexanone (+4 more)

CAS 16587-71-6

4-(tert-Pentyl)-cyclohexanone (CAS 16587-71-6) is a chemical substance. Key regulatory status: REACH registered, 2 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ECHA REACH.

View cosmetic safety profile for Isopentylcyclohexanone →

SOURCE noael studies public
NOAEL studies
13
SOURCE chemical inventory jurisdictions
Regulatory lists
2
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 15 fields
Name
4-(tert-Pentyl)-cyclohexanone
CAS Number
16587-71-6
DTXSID
DTXSID4047127
Molecular Formula
C11H20O
InChI Key
DCSKAMGZSIRJAQ-UHFFFAOYSA-N
Monoisotopic Mass
168.151415
Synonyms
Cyclohexanone, 4-(1,1-dimethylpropyl)-Cyclohexanone, 4-tert-pentyl-4-tert-Pentylcyclohexanone4-07-00-000964-tert-AmylcyclohexanoneBRN 22404754-(1,1-Dimethylpropyl)cyclohexanoneEINECS 240-642-0NSC 21167

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 6 records
DeodorizerFragrance

Regulatory Lists

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

SOURCE EPA CPDat 2 records
ListKeywordSource
IFRA TransparencyIFRAIFRA
consumer_productP&GProctor & Gamble

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 13 of 13 studies
ValueUnitEndpointRouteSpeciesSource
2.60978849726935uMAC50--NTP_ICE_endocrine
0.663218143681608uMACC--NTP_ICE_endocrine
=20mg/m3DNEL systemicinhalationHumanToxValDB_GESTIS_DNEL
5380BWU79XUNIIFDA UNII substance identifier--openFDA substances
5380BWU79XUNIIFDA UNII substance identifier--openFDA substances
5380BWU79XUNIIFDA UNII substance identifier--openFDA substances
5380BWU79XUNIIFDA UNII substance identifier--openFDA substances
-%Incidence of positive responsesDermalHumanNTP_ICE_skin_sensitization
5184ug/cm2Induction dose per skin areaDermalHumanNTP_ICE_skin_sensitization
=4700mg/kg bwLD50oralRatNTP_ICE_acute_oral
-unitlessModel Score--NTP_ICE_endocrine
0.0437unitlessModel Score--NTP_ICE_endocrine
3unitlessRelative reliability scoreDermalHumanNTP_ICE_skin_sensitization

Showing 13 of 13 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
Registered4-tert-pentylcyclohexanone240-642-0ECHA 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 →

Pharmaceutical Data

Same-CAS pharmaceutical records from drug and bioactivity sources.

SOURCE EMBL-EBI ChEMBL CHEMBL3182470
ChEMBL Phase
Not listed
Adverse Events
0
Bioactivity
0
View full pharmaceutical profile →

Frequently Asked Questions

What is the NOAEL for 4-(tert-Pentyl)-cyclohexanone?

4-(tert-Pentyl)-cyclohexanone has 13 NOAEL studies in the database. The lowest reported value is 0.663218143681608 uM. Source: NTP_ICE_endocrine.

What regulatory lists include 4-(tert-Pentyl)-cyclohexanone?

4-(tert-Pentyl)-cyclohexanone appears on 2 regulatory/inventory lists including IFRA Transparency, consumer_product. Source: EPA CPDat.

Is 4-(tert-Pentyl)-cyclohexanone used in cosmetics?

Yes, 4-(tert-Pentyl)-cyclohexanone is also indexed as a cosmetic ingredient under the name Isopentylcyclohexanone. 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 4-(tert-Pentyl)-cyclohexanone come from?

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

Is 4-(tert-Pentyl)-cyclohexanone used outside industrial chemicals?

4-(tert-Pentyl)-cyclohexanone also appears in cosmetics, pharmaceutical databases.