CAS number
CAS 87-68-3 Hexachlorobutadiene
CAS 87-68-3 · EC 201-765-5
Where CAS 87-68-3 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
PIC Regulation Annex V, the entry for Hexachlorobutadiene
Last changed in the version in force , by Regulation (EU) 2022/643, the act that change names · Annex V on this site
| Description of chemicals/article(s) subject to export ban | Additional details, where relevant (e.g. name of chemical, EC No, CAS No, etc.) | |
|---|---|---|
| Hexachlorobutadiene | EC No 201-765-5 CAS No 87-68-3 CN code ex29032900 | |
POPs Regulation Annex I, the entry for Hexachlorobutadiene
No change to this entry since the first version the record holds, detected 4 September 2026. · Annex I on this site
| Substance | CAS No | EC No | Specific exemption on intermediate use or other specification |
|---|---|---|---|
| Hexachlorobutadiene | 87-68-3 | 201-765-5 | 1. Placing on the market and use of articles already in use before or on 10 July 2012 containing hexachlorobutadiene shall be allowed. 2. Article 4(2), third and fourth subparagraphs shall apply to articles referred to in point 1. |
POPs Regulation Annex IV, the entry for Hexachlorobutadiene
No change to this entry since the first version the record holds, detected 4 September 2026. · Annex IV on this site
| Substance | CAS No | EC No | Concentration limit referred to in Article 7(4)(a) |
|---|---|---|---|
| Hexachlorobutadiene | 87-68-3 | 201-765-5 | 100 mg/kg |
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 V, the entry for Hexachlorobutadiene
Recorded in the version in force , by Regulation (EU) 2022/643, the act that change names. The change on its version page
| Identifiers | Version | Description of chemicals/article(s) subject to export ban | Additional details, where relevant (e.g. name of chemical, EC No, CAS No, etc.) | |
|---|---|---|---|---|
| HexachlorobutadieneCAS 87-68-3EC 201-765-5 | Before | Hexachlorobutadiene | EC No 201-765-5
CAS No 87-68-3
CN code | |
| After | Hexachlorobutadiene | EC No 201-765-5 CAS No 87-68-3 CN code ex29032900 | ||
· added · PIC Regulation Annex V, the entry for Hexachlorobutadiene
Recorded in the version in force , by Regulation (EU) 2018/172, the act that change names. The change on its version page
| Identifiers | Description of chemicals/article(s) subject to export ban | Additional details, where relevant (e.g. name of chemical, EC No, CAS No, etc.) | |
|---|---|---|---|
| HexachlorobutadieneCAS 87-68-3EC 201-765-5 | Hexachlorobutadiene | EC No 201-765-5 CAS No 87-68-3 CN code 29032900 | |
Sources
- 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)