Also known as: Cetonal, EINECS 265-747-9, 2-Methyl-4-(2,6,6-trimethyl-2(1)-cyclohexen-1-yl) butanal, 2-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)butanal, alpha,2,2,6-Tetramethylcyclohexenebutanal (+1 more)
CAS 65405-84-7
2-Methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)butanal (CAS 65405-84-7) 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.
CAS, identifiers, formula, and alternate names for the matched substance record.
Industrial and product-use categories associated with this substance.
Inventory, screening, and regulatory list matches from public chemical databases.
| List | Keyword | Source |
|---|---|---|
| IFRA Transparency | IFRA | IFRA |
| Europe | European Commission | Fl@vis |
Toxicology endpoints rendered from public NOAEL study rows.
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| - | % | Incidence of positive responses | Dermal | Human | NTP_ICE_skin_sensitization |
| 18900 | ug/cm2 | Induction dose per skin area | Dermal | Human | NTP_ICE_skin_sensitization |
| 3 | unitless | Relative reliability score | Dermal | Human | NTP_ICE_skin_sensitization |
Showing 3 of 3 studies
Registration status from the ECHA REACH registered substances database.
| Status | Name | EC Number | Link |
|---|---|---|---|
| Registered | α,2,2,6-tetramethylcyclohexene-1-butyraldehyde | 265-747-9 | ECHA overview → |
Australian industrial chemicals inventory status and applicable conditions.
Same-CAS cosmetic ingredient record for cross-vertical context.
2-Methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)butanal has 3 NOAEL studies in the database. The lowest reported value is 0 % via Dermal in Human. Source: NTP_ICE_skin_sensitization.
2-Methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)butanal appears on 2 regulatory/inventory lists including IFRA Transparency, Europe. Source: EPA CPDat.
Yes, 2-Methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)butanal is also indexed as a cosmetic ingredient under the name Cetonal. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ECHA REACH, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.
2-Methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)butanal also appears in cosmetics databases.