CAS number
CAS 140-66-9 4-(1,1,3,3-tetramethylbutyl)phenol
CAS 140-66-9 · EC 205-426-2 · Index No 604-075-00-6
Where CAS 140-66-9 appears: every table entry that prints it among its identifiers, in the newest version of each act this record holds, and every recorded change to those entries. Many entries name a group of substances and print no number, so absence here is not absence from the law. Not legal advice.
Where it appears now
CLP Annex VI section 3, Index No 604-075-00-6
Last changed in the version in force , by Regulation (EC) No 790/2009, the act that change names · Annex VI on this site
| Index No | Chemical name | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors and ATEs | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazard Class and Category Code(s) | Hazard statement Code(s) | Pictogram, Signal Word Code(s) | Hazard statement Code(s) | Suppl. Hazard statement Code(s) | ||||||
| 604-075-00-6 | 4-(1,1,3,3-tetramethylbutyl)phenol; 4-tert-octylphenol | 205-426-2 | 140-66-9 | Skin Irrit. 2 Eye Dam. 1 Aquatic Acute 1 Aquatic Chronic 1 | H315 H318 H400 H410 | GHS05 GHS09 Dgr | H315 H318 H410 | M=10 | ||
CLP Annex VI section 3, table 2, Index No 604-075-00-6
Last changed in the version in force , by Regulation (EC) No 790/2009, the act that change names · Annex VI on this site
| Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|
| 604-075-00-6 | 4-(1,1,3,3-tetramethylbutyl)phenol; 4-tert-octylphenol | 205-426-2 | 140-66-9 | Xi; R38-41 N; R50-53 | Xi; N R: 38-41-50/53 S: (2-)26-37/39-60-61 | N; R50-53: C ≥ 2,5 % N; R51-53: 0,25 % ≤ C < 2,5 % R52-53: 0,025 % ≤ C < 0,25 % |
Plant Protection Products Regulation Annex III, No 83
Last changed in the version in force , by Regulation (EU) 2019/1381 and Regulation (EU) 2021/383, the acts that change names · Annex III on this site
| No | Name | EC names/Other names | CAS number | EC number | Classification/Other properties |
|---|---|---|---|---|---|
| 83. | 4-(2,4,4-Trimethylpentan-2-yl)phenol; 4-(1,1,3,3-Tetramethylbutyl)phenol; 4-(tert-octyl) Phenol Phenol, 4-(1,1,3,3-tetramethylbutyl)-; 4-tert-Octylphenol | 140-66-9 | 205-426-2 | Endocrine disrupting properties (REACH Article 57(f) – Environment) | |
Look up a number
Type a CAS or EC number, with or without its hyphens, or an Index No into the search box at the top of the page: it reads 50000 as CAS 50-00-0. Every number is also listed by act on the substances page.
Its history
· added · Plant Protection Products Regulation Annex III, No 83
Recorded in the version in force , by Regulation (EU) 2019/1381 and Regulation (EU) 2021/383, the acts that change names. The change on its version page
| Identifiers | No | Name | EC names/Other names | CAS number | EC number | Classification/Other properties |
|---|---|---|---|---|---|---|
| No 83CAS 140-66-9EC 205-426-2 | 83. | 4-(2,4,4-Trimethylpentan-2-yl)phenol; 4-(1,1,3,3-Tetramethylbutyl)phenol; 4-(tert-octyl) Phenol Phenol, 4-(1,1,3,3-tetramethylbutyl)-; 4-tert-Octylphenol | 140-66-9 | 205-426-2 | Endocrine disrupting properties (REACH Article 57(f) – Environment) | |
· added · CLP Annex VI section 3, Index No 604-075-00-6
Recorded in the version in force , by Regulation (EC) No 790/2009, the act that change names. The change on its version page
| Identifiers | Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Specific Conc. Limits, M-factors | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hazard Class and Category Code(s) | Hazard statement Code(s) | Pictogram, Signal Word Code(s) | Hazard statement Code(s) | Suppl. Hazard statement Code(s) | |||||||
| Index No 604-075-00-6CAS 140-66-9EC 205-426-2 | 604-075-00-6 | 4-(1,1,3,3-tetramethylbutyl)phenol; 4-tert-octylphenol | 205-426-2 | 140-66-9 | Skin Irrit. 2 Eye Dam. 1 Aquatic Acute 1 Aquatic Chronic 1 | H315 H318 H400 H410 | GHS05 GHS09 Dgr | H315 H318 H410 | M=10 | ||
· added · CLP Annex VI section 3, table 2, Index No 604-075-00-6
Recorded in the version in force , by Regulation (EC) No 790/2009, the act that change names. The change on its version page
| Identifiers | Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|---|
| Index No 604-075-00-6CAS 140-66-9EC 205-426-2 | 604-075-00-6 | 4-(1,1,3,3-tetramethylbutyl)phenol; 4-tert-octylphenol | 205-426-2 | 140-66-9 | Xi; R38-41 N; R50-53 | Xi; N R: 38-41-50/53 S: (2-)26-37/39-60-61 | N; R50-53: C ≥ 2,5 % N; R51-53: 0,25 % ≤ C < 2,5 % R52-53: 0,025 % ≤ C < 0,25 % |
Sources
- CLP: every version the record holds; rows read from EUR-Lex consolidated version 02008R1272-20270101, in force 1 January 2027 (external, EUR-Lex)
- Plant Protection Products Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1107-20260616, in force 16 June 2026 (external, EUR-Lex)