EC number
EC 201-126-0 3,5,5-trimethylcyclohex-2-enone
CAS 78-59-1 · EC 201-126-0 · Index No 606-012-00-8
Where EC 201-126-0 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 606-012-00-8
Last changed in the version in force , by Regulation (EU) 2018/669 and 2 others, the acts 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) | ||||||
| 606-012-00-8 | 3,5,5-trimethylcyclohex-2-enone; isophorone | 201-126-0 | 78-59-1 | Carc. 2 Acute Tox. 4 * Acute Tox. 4 * Eye Irrit. 2 STOT SE 3 | H351 H312 H302 H319 H335 | GHS08 GHS07 Wng | H351 H312 H302 H319 H335 | STOT SE 3; H335: C ≥10 % | ||
CLP Annex VI section 3, table 2, Index No 606-012-00-8
No change to this entry since the first version the record holds, in force 1 December 2010. · Annex VI on this site
| Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|
| 606-012-00-8 | 3,5,5-trimethylcyclohex-2-enone; isophorone | 201-126-0 | 78-59-1 | Carc. Cat. 3; R40 Xn; R21/22 Xi; R36/37 | Xn R: 21/22-36/37-40 S: (2-)13-23-36/37/39-46 | Xi; R36/37: C ≥ 10 % |
Cosmetics Regulation Annex II, Reference number 1101
No change to this entry since the first version the record holds, in force 11 July 2013. · Annex II on this site
| Reference number | Substance identification | ||
|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |
| a | b | c | d |
| 1101 | 3,5,5-Trimethylcyclohex-2-enone (Isophorone) | 78-59-1 | 201-126-0 |
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
· amended · CLP Annex VI section 3, Index No 606-012-00-8
Recorded in the version in force , by Regulation (EU) 2018/669 and 2 others, the acts that change names. Only spacing, dash forms or accents differ. The change on its version page
| Identifiers | Version | Index No | Chemical name | 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 606-012-00-8CAS 78-59-1EC 201-126-0 | Before | 606-012-00-8 | 3,5,5-trimethylcyclohex-2-enone; isophorone | 201-126-0 | 78-59-1 | Carc. 2 Acute Tox. 4 * Acute Tox. 4 * Eye Irrit. 2 STOT SE 3 | H351 H312 H302 H319 H335 | GHS08 GHS07 Wng | H351 H312 H302 H319 H335 | STOT SE 3; H335: C | ||
| After | 606-012-00-8 | 3,5,5-trimethylcyclohex-2-enone; isophorone | 201-126-0 | 78-59-1 | Carc. 2 Acute Tox. 4 * Acute Tox. 4 * Eye Irrit. 2 STOT SE 3 | H351 H312 H302 H319 H335 | GHS08 GHS07 Wng | H351 H312 H302 H319 H335 | STOT SE 3; H335: C ≥10 % | |||
Sources
- CLP: every version the record holds; rows read from EUR-Lex consolidated version 02008R1272-20270101, in force 1 January 2027 (external, EUR-Lex)
- Cosmetics Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1223-20260518, in force 18 May 2026 (external, EUR-Lex)