CAS number
CAS 2921-88-2 Chlorpyrifos
CAS 2921-88-2 · EC 220-864-4 · Index No 015-084-00-4
Where CAS 2921-88-2 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 015-084-00-4
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) | ||||||
| 015-084-00-4 | chlorpyrifos (ISO); O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate | 220-864-4 | 2921-88-2 | Acute Tox. 3 * Aquatic Acute 1 Aquatic Chronic 1 | H301 H400 H410 | GHS06 GHS09 Dgr | H301 H400 H410 | M = 10000 | ||
CLP Annex VI section 3, table 2, Index No 015-084-00-4
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 |
|---|---|---|---|---|---|---|---|
| 015-084-00-4 | chlorpyrifos (ISO); O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate | 220-864-4 | 2921-88-2 | T; R25 N; R50-53 | T; N R: 25-50/53 S: (1/2-)45-60-61 | N; R50-53: C ≥ 0,0025 % N; R51-53: 0,00025 % ≤ C < 0,0025 % R52-53: 0,000025 % ≤ C < 0,00025 % |
PIC Regulation Annex I, the entry for Chlorpyrifos
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 |
|---|---|---|---|---|---|---|
| Chlorpyrifos | 2921-88-2 | 220-864-4 | ex29333999 | p(1) | b |
PIC Regulation Annex I, table 2, the entry for Chlorpyrifos
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 | Category | Use limitation |
|---|---|---|---|---|---|
| Chlorpyrifos | 2921-88-2 | 220-864-4 | ex29333999 | p | b |
POPs Regulation Annex I, the entry for Chlorpyrifos
Last changed in the version in force , by Regulation (EU) 2026/1423, the act that change names · Annex I on this site
| Substance | CAS No | EC No | Specific exemption on intermediate use or other specification |
|---|---|---|---|
| Chlorpyrifos | 2921-88-2 | 220-864-4 | For the purposes of this entry, Article 4(1), point (b), shall apply to concentrations of chlorpyrifos equal to or below 0,01 mg/kg (0,000001 % by weight) where they are present in substances, mixtures or articles. |
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
· added · POPs Regulation Annex I, the entry for Chlorpyrifos
Recorded in the version in force , by Regulation (EU) 2026/1423, the act that change names. The change on its version page
| Identifiers | Substance | CAS No | EC No | Specific exemption on intermediate use or other specification |
|---|---|---|---|---|
| ChlorpyrifosCAS 2921-88-2EC 220-864-4 | Chlorpyrifos | 2921-88-2 | 220-864-4 | For the purposes of this entry, Article 4(1), point (b), shall apply to concentrations of chlorpyrifos equal to or below 0,01 mg/kg (0,000001 % by weight) where they are present in substances, mixtures or articles. |
· added · PIC Regulation Annex I, the entry for Chlorpyrifos
Recorded in the version in force , by Regulation (EU) 2022/643, the act that change names. The change on its version page
| Identifiers | Chemical | CAS No | EC No | CN code | Subcategory | Use limitation | Countries for which no notification is required |
|---|---|---|---|---|---|---|---|
| ChlorpyrifosCAS 2921-88-2EC 220-864-4 | Chlorpyrifos | 2921-88-2 | 220-864-4 | ex29333999 | p(1) | b |
· added · PIC Regulation Annex I, table 2, the entry for Chlorpyrifos
Recorded in the version in force , by Regulation (EU) 2022/643, the act that change names. The change on its version page
| Identifiers | Chemical | CAS No | EC No | CN code | Category | Use limitation |
|---|---|---|---|---|---|---|
| ChlorpyrifosCAS 2921-88-2EC 220-864-4 | Chlorpyrifos | 2921-88-2 | 220-864-4 | ex29333999 | p | b |
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)
- POPs Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02019R1021-20260930, in force 30 September 2026 (external, EUR-Lex)