CAS number
CAS 151-56-4 Aziridine
CAS 151-56-4 · EC 205-793-9 · Index No 613-001-00-1
Where CAS 151-56-4 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 613-001-00-1
No change to this entry since the first version the record holds, in force 1 December 2010. · 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) | ||||||
| 613-001-00-1 | ethyleneimine; aziridine | 205-793-9 | 151-56-4 | Flam. Liq. 2 Carc. 1B Muta. 1B Acute Tox. 2 * Acute Tox. 1 Acute Tox. 2 * Skin Corr. 1B Aquatic Chronic 2 | H225 H350 H340 H330 H310 H300 H314 H411 | GHS02 GHS06 GHS08 GHS05 GHS09 Dgr | H225 H350 H340 H330 H310 H300 H314 H411 | D | ||
CLP Annex VI section 3, table 2, Index No 613-001-00-1
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 |
|---|---|---|---|---|---|---|---|
| 613-001-00-1 | ethyleneimine; aziridine | 205-793-9 | 151-56-4 | F; R11 Carc. Cat. 2; R45 Muta. Cat. 2; R46 T+; R26/27/28 C; R34 N; R51-53 | F; T+; N R: 45-46-11-26/27/28-34-51/53 S: 53-45-61 | D E |
Cosmetics Regulation Annex II, Reference number 733
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 |
| 733 | Aziridine | 151-56-4 | 205-793-9 |
REACH Annex XVII appendix 2, Index No 613-001-00-1
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 |
|---|---|---|---|---|
| Ethyleneimine; aziridine | 613-001-00-1 | 205-793-9 | 151-56-4 |
REACH Annex XVII appendix 4, Index No 613-001-00-1
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 |
|---|---|---|---|---|
| Ethyleneimine; aziridine | 613-001-00-1 | 205-793-9 | 151-56-4 |
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
No change to this entry since the first version the record holds, in force 1 December 2010.
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)