CAS number
CAS 80-43-3 bis(α,α-dimethylbenzyl) peroxide
CAS 80-43-3 · EC 201-279-3 · Index No 617-006-00-X
Where CAS 80-43-3 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 617-006-00-X
Last changed in the version in force , by Regulation (EU) 2020/1182, 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) | ||||||
| 617-006-00-X | bis(α,α-dimethylbenzyl) peroxide | 201-279-3 | 80-43-3 | Org. Perox. F Repr. 1B Skin Irrit. 2 Eye Irrit. 2 Aquatic Chronic 2 | H242 H360D H315 H319 H411 | GHS02 GHS08 GHS07 GHS09 Dgr | H242 H360D H315 H319 H411 | |||
CLP Annex VI section 3, table 2, Index No 617-006-00-X
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 |
|---|---|---|---|---|---|---|---|
| 617-006-00-X | bis(α,α-dimethylbenzyl) peroxide | 201-279-3 | 80-43-3 | O; R7 Xi; R36/38 N; R51-53 | O; Xi; N R: 7-36/38-51/53 S: (2-)3/7-14-36/37/39-61 |
Cosmetics Regulation Annex II, Reference number 1680
Last changed in the version in force , by Regulation (EU) 2022/1531 and Regulation (EU) 2022/2195, the acts that change names · Annex II on this site
| Reference number | Substance identification | ||
|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |
| a | b | c | d |
| 1680 | Bis(α,α-dimethylbenzyl) peroxide | 80-43-3 | 201-279-3 |
REACH Annex XVII appendix 6, Index No 617-006-00-X
Last changed in the version in force , by Regulation (EU) 2021/2204, the act that change names · Annex XVII on this site
| Substances | Index No | EC No | CAS No | Notes |
|---|---|---|---|---|
| Bis(α,α-dimethylbenzyl) peroxide | 617-006-00-X | 201-279-3 | 80-43-3 |
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 · Cosmetics Regulation Annex II, Reference number 1680
Recorded in the version in force , by Regulation (EU) 2022/1531 and Regulation (EU) 2022/2195, the acts that change names. The change on its version page
| Identifiers | Version | Reference number | Substance identification | ||
|---|---|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |||
| a | b | c | d | ||
| Reference number 1680CAS 80-43-3EC 201-279-3 | Before | 1680 | Bis(α,α-dimethylbenzyl) peroxide | 201-279-3 | |
| After | 1680 | Bis(α,α-dimethylbenzyl) peroxide | 80-43-3 | 201-279-3 | |
· amended · CLP Annex VI section 3, Index No 617-006-00-X
Recorded in the version in force , by Regulation (EU) 2020/1182, the act that change names. The change on its version page
| Identifiers | Version | 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) | ||||||||
| Index No 617-006-00-XCAS 80-43-3EC 201-279-3 | Before | 617-006-00-X | 201-279-3 | 80-43-3 | Org. Perox. F
| H242
H319
| GHS02
GHS07
GHS09
| H242
H319
| ||||
| After | 617-006-00-X | bis(α,α-dimethylbenzyl) peroxide | 201-279-3 | 80-43-3 | Org. Perox. F Repr. 1B Skin Irrit. 2 Eye Irrit. 2 Aquatic Chronic 2 | H242 H360D H315 H319 H411 | GHS02 GHS08 GHS07 GHS09 Dgr | H242 H360D H315 H319 H411 | ||||
· added · Cosmetics Regulation Annex II, Reference number 1680
Recorded in the version in force , by Regulation (EU) 2021/1902 and Regulation (EU) 2022/135, the acts that change names. The change on its version page
| Identifiers | Reference number | Substance identification | ||
|---|---|---|---|---|
| Chemical name/INN | CAS number | EC number | ||
| a | b | c | d | |
| Reference number 1680CAS 80-43-3EC 201-279-3 | 1680 | Bis(α,α-dimethylbenzyl) peroxide | 80-43-3; | 201-279-3 |
· added · REACH Annex XVII appendix 6, Index No 617-006-00-X
Recorded in the version in force , by Regulation (EU) 2021/2204, the act that change names. The change on its version page
| Identifiers | Substances | Index No | EC No | CAS No | Notes |
|---|---|---|---|---|---|
| Index No 617-006-00-XCAS 80-43-3EC 201-279-3 | Bis(α,α-dimethylbenzyl) peroxide | 617-006-00-X | 201-279-3 | 80-43-3 |
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)
- REACH: every version the record holds; rows read from EUR-Lex consolidated version 02006R1907-20260622, detected 11 September 2026 (external, EUR-Lex)