CAS number
CAS 56-38-2 Parathion
CAS 56-38-2 · EC 200-271-7 · Index No 015-034-00-1
Where CAS 56-38-2 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 015-034-00-1
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) | ||||||
| 015-034-00-1 | parathion (ISO); O,O-diethyl O-4-nitrophenyl phosphorothioate | 200-271-7 | 56-38-2 | Acute Tox. 2 * Acute Tox. 2 * Acute Tox. 3 * STOT RE 1 Aquatic Acute 1 Aquatic Chronic 1 | H330 H300 H311 H372 ** H400 H410 | GHS06 GHS08 GHS09 Dgr | H330 H300 H311 H372 ** H410 | M = 100 | ||
CLP Annex VI section 3, table 2, Index No 015-034-00-1
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 |
|---|---|---|---|---|---|---|---|
| 015-034-00-1 | parathion (ISO); O,O-diethyl O-4-nitrophenyl phosphorothioate | 200-271-7 | 56-38-2 | T+; R26/28 T; R24-48/25 N; R50-53 | T+; N R: 24-26/28-48/25-50/53 S: (1/2-)28-36/37-45-60-61 | N; R50-53: C ≥ 0,25 % N; R51-53: 0,025 % ≤ C < 0,25 % R52-53: 0,0025 % ≤ C < 0,025 % |
Cosmetics Regulation Annex II, Reference number 131
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 |
| 131 | O,O'-Diethyl-O-4-nitrophenyl phosphorothioate (Parathion - ISO) | 56-38-2 | 200-271-7 |
PIC Regulation Annex I, the entry for Parathion
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 |
|---|---|---|---|---|---|---|
| Parathion | 56-38-2 | 200-271-7 | ex29201100 | p(1)-p(2) | b-b | Please refer to PIC circular at www.pic.int/ |
PIC Regulation Annex I, table 3, the entry for Parathion
Last changed in the version in force , by Regulation (EU) 2022/643, the act that change names · Annex I on this site
| Chemical | Relevant CAS number(s) | HS code Pure substance | HS code Mixtures containing substance | Category |
|---|---|---|---|---|
| Parathion | 56-38-2 | ex 2920.11 | ex 3808.59 | Pesticide |
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 Parathion
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 |
|---|---|---|---|---|---|---|---|---|
| ParathionCAS 56-38-2EC 200-271-7 | Before | Parathion | 56-38-2 | 200-271-7 | p(1)-p(2) | b-b | Please refer to PIC circular at www.pic.int/ | |
| After | Parathion | 56-38-2 | 200-271-7 | ex29201100 | p(1)-p(2) | b-b | Please refer to PIC circular at www.pic.int/ |
· amended · PIC Regulation Annex I, table 3, the entry for Parathion
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 | Relevant CAS number(s) | HS code Pure substance | HS code Mixtures containing substance | Category |
|---|---|---|---|---|---|---|
| ParathionCAS 56-38-2 | Before | Parathion | 56-38-2 | 2920.11 | Pesticide | |
| After | Parathion | 56-38-2 | ex 2920.11 | ex 3808.59 | Pesticide |
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)
- PIC Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02012R0649-20261001, in force 1 October 2026 (external, EUR-Lex)