CAS number
CAS 138261-41-3 Imidacloprid
CAS 138261-41-3 · EC 428-040-8 · Index No 612-252-00-4
Where CAS 138261-41-3 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 612-252-00-4
Last changed in the version in force , by Regulation (EU) 2021/849, 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) | ||||||
| 612-252-00-4 | imidacloprid (ISO); (E)-1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine; (2E)-1-[(6-chloropyridin-3-yl) methyl]-N-nitroimidazolidin-2-imine | 428-040-8 | 138261-41-3 | Acute Tox. 3 Aquatic Acute 1 Aquatic Chronic 1 | H301 H400 H410 | GHS06 GHS09 Dgr | H301 H410 | oral: ATE = 131 mg/kg bw M = 100 M = 1000 | ||
CLP Annex VI section 3, table 2, Index No 612-252-00-4
Last changed in the version in force , by Regulation (EC) No 790/2009, the act that change names · Annex VI on this site
| Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|
| 612-252-00-4 | imidacloprid (ISO); 1-(6-chloropyridin-3-ylmethyl)-N-nitroimidazolidin-2-ylidenamine | 428-040-8 | 138261-41-3 | Xn; R22 N; R50-53 | Xn; N R: 22-50/53 S: (2-)22-57-60-61 |
PIC Regulation Annex I, the entry for Imidacloprid
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 |
|---|---|---|---|---|---|---|
| Imidacloprid | 138261-41-3 | 428-040-8 | ex29333999 | p(1) | sr |
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 612-252-00-4
Recorded in the version in force , by Regulation (EU) 2021/849, 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 612-252-00-4CAS 138261-41-3EC 428-040-8 | Before | 612-252-00-4 | imidacloprid (ISO);
| 428-040-8 | 138261-41-3 | Acute Tox. | ||||||
| After | 612-252-00-4 | imidacloprid (ISO); (E)-1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine; (2E)-1-[(6-chloropyridin-3-yl) methyl]-N-nitroimidazolidin-2-imine | 428-040-8 | 138261-41-3 | Acute Tox. 3 Aquatic Acute 1 Aquatic Chronic 1 | H301 H400 H410 | GHS06 GHS09 Dgr | H301 H410 | oral: ATE = 131 mg/kg bw M = 100 M = 1000 | |||
· amended · PIC Regulation Annex I, the entry for Imidacloprid
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 |
|---|---|---|---|---|---|---|---|---|
| ImidaclopridCAS 138261-41-3EC 428-040-8 | Before | Imidacloprid | 138261-41-3 | ex29333999 | p(1) | sr | ||
| After | Imidacloprid | 138261-41-3 | 428-040-8 | ex29333999 | p(1) | sr |
· added · PIC Regulation Annex I, the entry for Imidacloprid
Recorded in the version in force , by Regulation (EU) 2020/1068, 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 |
|---|---|---|---|---|---|---|---|
| ImidaclopridCAS 138261-41-3 | Imidacloprid | 138261-41-3 | n.a. | ex29333999 | p(1) | sr |
· added · CLP Annex VI section 3, Index No 612-252-00-4
Recorded in the version in force , by Regulation (EC) No 790/2009, the act that change names. The change on its version page
| Identifiers | Index No | International Chemical Identification | 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 612-252-00-4CAS 138261-41-3EC 428-040-8 | 612-252-00-4 | imidacloprid (ISO); 1-(6-chloropyridin-3-ylmethyl)-N-nitroimidazolidin-2-ylidenamine | 428-040-8 | 138261-41-3 | Acute Tox. 4 * Aquatic Acute 1 Aquatic Chronic 1 | H302 H400 H410 | GHS07 GHS09 Wng | H302 H410 | |||
· added · CLP Annex VI section 3, table 2, Index No 612-252-00-4
Recorded in the version in force , by Regulation (EC) No 790/2009, the act that change names. The change on its version page
| Identifiers | Index No | International Chemical Identification | EC No | CAS No | Classification | Labelling | Concentration Limits | Notes |
|---|---|---|---|---|---|---|---|---|
| Index No 612-252-00-4CAS 138261-41-3EC 428-040-8 | 612-252-00-4 | imidacloprid (ISO); 1-(6-chloropyridin-3-ylmethyl)-N-nitroimidazolidin-2-ylidenamine | 428-040-8 | 138261-41-3 | Xn; R22 N; R50-53 | Xn; N R: 22-50/53 S: (2-)22-57-60-61 |
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)