CAS number
CAS 1303-28-2 Diarsenic pentaoxide
CAS 1303-28-2 · EC 215-116-9 · Index No 033-004-00-6
Where CAS 1303-28-2 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 033-004-00-6
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) | ||||||
| 033-004-00-6 | diarsenic pentaoxide; arsenic pentoxide; arsenic oxide | 215-116-9 | 1303-28-2 | Carc. 1A Acute Tox. 3 * Acute Tox. 3 * Aquatic Acute 1 Aquatic Chronic 1 | H350 H331 H301 H400 H410 | GHS06 GHS08 GHS09 Dgr | H350 H331 H301 H410 | |||
CLP Annex VI section 3, table 2, Index No 033-004-00-6
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 |
|---|---|---|---|---|---|---|---|
| 033-004-00-6 | diarsenic pentaoxide; arsenic pentoxide; arsenic oxide | 215-116-9 | 1303-28-2 | Carc. Cat. 1; R45 T; R23/25 N; R50-53 | T; N R: 45-23/25-50/53 S: 53-45-60-61 | E |
PIC Regulation Annex I, the entry for Diarsenic pentaoxide
Last changed in the version in force , by Regulation (EU) 2022/643, the act that change names · Annex I on this site
| Chemical | CAS No | EC No | CN code | Subcategory | Use limitation | Countries for which no notification is required |
|---|---|---|---|---|---|---|
| Diarsenic pentaoxide | 1303-28-2 | 215-116-9 | ex28112990 | i(1)-i(2) | sr-b |
PIC Regulation Annex I, table 2, the entry for Diarsenic pentaoxide
Last changed in the version in force , by Regulation (EU) 2018/172, the act that change names · Annex I on this site
| Chemical | CAS No | EC No | CN code | Category | Use limitation |
|---|---|---|---|---|---|
| Diarsenic pentaoxide | 1303-28-2 | 215-116-9 | ex28112990 | i | sr |
REACH Annex XIV, Entry 9
Last changed in the version in force , by Regulation (EU) No 125/2012 and 2 others, the acts that change names · Annex XIV on this site
| Entry Nr | Substance | Intrinsic property(ies) referred to in Article 57 | Transitional arrangements | Exempted (categories of) uses | Review periods | |
|---|---|---|---|---|---|---|
| Latest application date | Sunset date | |||||
| 9. | Diarsenic pentaoxide EC No: 215-116-9 CAS No: 1303-28-2 | Carcinogenic (category 1A) | 21 November 2013 | 21 May 2015 | — | — |
REACH Annex XVII appendix 1, Index No 033-004-00-6
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 |
|---|---|---|---|---|
| Arsenic pentoxide; arsenic oxide | 033-004-00-6 | 215-116-9 | 1303-28-2 |
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 · PIC Regulation Annex I, the entry for Diarsenic pentaoxide
Recorded in the version in force , by Regulation (EU) 2022/643, the act that change names. The change on its version page
| Identifiers | Version | Chemical | CAS No | EC No | CN code | Subcategory | Use limitation | Countries for which no notification is required |
|---|---|---|---|---|---|---|---|---|
| Diarsenic pentaoxideCAS 1303-28-2EC 215-116-9 | Before | Diarsenic pentaoxide | 1303-28-2 | 215-116-9 | ex28112990 | |||
| After | Diarsenic pentaoxide | 1303-28-2 | 215-116-9 | ex28112990 | i(1)-i(2) | sr-b |
· added · PIC Regulation Annex I, the entry for Diarsenic pentaoxide
Recorded in the version in force , by Regulation (EU) 2018/172, the act that change names. The change on its version page
| Identifiers | Chemical | CAS No | Einecs No | CN code | Subcategory | Use limitation | Countries for which no notification is required |
|---|---|---|---|---|---|---|---|
| Diarsenic pentaoxideCAS 1303-28-2EC 215-116-9 | Diarsenic pentaoxide | 1303-28-2 | 215-116-9 | ex28112990 | i(1) - i(2) | sr |
· added · PIC Regulation Annex I, table 2, the entry for Diarsenic pentaoxide
Recorded in the version in force , by Regulation (EU) 2018/172, the act that change names. The change on its version page
| Identifiers | Chemical | CAS No | Einecs No | CN code | Category | Use limitation |
|---|---|---|---|---|---|---|
| Diarsenic pentaoxideCAS 1303-28-2EC 215-116-9 | Diarsenic pentaoxide | 1303-28-2 | 215-116-9 | ex28112990 | i | sr |
· added · REACH Annex XIV, Entry 9
Recorded in the version in force , by Regulation (EU) No 125/2012 and 2 others, the acts that change names. The change on its version page
| Identifiers | Entry Nr | Substance | Intrinsic property(ies) referred to in Article 57 | Transitional arrangements | Exempted (categories of) uses | Review periods | |
|---|---|---|---|---|---|---|---|
| Latest application date | Sunset date | ||||||
| Entry 9CAS 1303-28-2EC 215-116-9 | 9. | Diarsenic pentaoxide EC No: 215-116-9 CAS No: 1303-28-2 | Carcinogenic (category 1A) | 21 November 2013 | 21 May 2015 | — | — |
Sources
- CLP: every version the record holds; rows read from EUR-Lex consolidated version 02008R1272-20270101, in force 1 January 2027 (external, EUR-Lex)
- PIC Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02012R0649-20261001, in force 1 October 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)