CAS number
CAS 764-41-0 1,4-dichlorobut-2-ene
CAS 764-41-0 · EC 212-121-8 · Index No 602-073-00-X
Where CAS 764-41-0 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 602-073-00-X
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) | ||||||
| 602-073-00-X | 1,4-dichlorobut-2-ene | 212-121-8 | 764-41-0 | Carc. 1B Acute Tox. 2 * Acute Tox. 3 * Acute Tox. 3 * Skin Corr. 1B Aquatic Acute 1 Aquatic Chronic 1 | H350 H330 H311 H301 H314 H400 H410 | GHS06 GHS08 GHS05 GHS09 Dgr | H350 H330 H311 H301 H314 H410 | Carc. 1B; H350: C ≥ 0,01 % STOT SE 3; H335:C≥5 % | ||
CLP Annex VI section 3, table 2, Index No 602-073-00-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 |
|---|---|---|---|---|---|---|---|
| 602-073-00-X | 1,4-dichlorobut-2-ene | 212-121-8 | 764-41-0 | Carc. Cat. 2; R45 T+; R26 T; R24/25 C; R34 N; R50-53 | T+; N R: 45-24/25-26-34-50/53 S: 53-45-60-61 | Carc. Cat. 2; R45: C ≥ 0,01 % C; R34: C ≥ 10 % Xi; R36/37/38: 5 % ≤ C < 10 % | E |
Cosmetics Regulation Annex II, Reference number 654
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 |
| 654 | 1,4-Dichlorobut-2-ene | 764-41-0 | 212-121-8 |
REACH Annex XVII appendix 2, Index No 602-073-00-X
No change to this entry since the first version the record holds, in force 12 October 2008. · Annex XVII on this site
| Substances | Index No | EC No | CAS No | Notes |
|---|---|---|---|---|
| 1,4-Dichlorobut-2-ene | 602-073-00-X | 212-121-8 | 764-41-0 | E |
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 602-073-00-X
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 602-073-00-XCAS 764-41-0EC 212-121-8 | Before | 602-073-00-X | 1,4-dichlorobut-2-ene | 212-121-8 | 764-41-0 | Carc. 1B Acute Tox. 2 * Acute Tox. 3 * Acute Tox. 3 * Skin Corr. 1B Aquatic Acute 1 Aquatic Chronic 1 | H350 H330 H311 H301 H314 H400 H410 | GHS06 GHS08 GHS05 GHS09 Dgr | H350 H330 H311 H301 H314 H410 | Carc. 1B; H350: C ≥ 0,01 %
STOT SE 3; | ||
| After | 602-073-00-X | 1,4-dichlorobut-2-ene | 212-121-8 | 764-41-0 | Carc. 1B Acute Tox. 2 * Acute Tox. 3 * Acute Tox. 3 * Skin Corr. 1B Aquatic Acute 1 Aquatic Chronic 1 | H350 H330 H311 H301 H314 H400 H410 | GHS06 GHS08 GHS05 GHS09 Dgr | H350 H330 H311 H301 H314 H410 | Carc. 1B; H350: C ≥ 0,01 % STOT SE 3; H335:C≥5 % | |||
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)