CAS number

CAS 40088-47-9 tetrabromodiphenyl ether

CAS 32534-81-9 · CAS 40088-47-9 · EC 251-084-2 · EC 254-787-2

Where CAS 40088-47-9 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 I, the entry for Commercial pentabromodiphenyl ether, including

Last changed in the version in force 1 July 2022, by Regulation (EU) 2022/643, the act that change names · Annex I on this site

Annex I, table 1
Chemical	CAS No	EC No	CN code	Subcategory	Use limitation	Countries for which no notification is required
Commercial pentabromodiphenyl ether, including tetrabromo diphenyl ether pentabromo diphenyl ether	40088-47-9 32534-81-9	254-787-2 251-084-2	ex29093031 ex29093038 ex38248800	i(1)-i(2)	b-b

PIC Regulation Annex I, table 3, the entry for tetrabromodiphenyl ether

Last changed in the version in force 1 July 2022, by Regulation (EU) 2022/643, the act that change names · Annex I on this site

Annex I, table 3
Chemical	Relevant CAS number(s)	HS code Pure substance	HS code Mixtures containing substance	Category
tetrabromodiphenyl ether	40088-47-9

PIC Regulation Annex V, the entry for Tetrabromodiphenyl ether C12H6Br4O

Last changed in the version in force 1 July 2022, by Regulation (EU) 2022/643, the act that change names · Annex V on this site

Annex V, table 1
Description of chemicals/article(s) subject to export ban	Additional details, where relevant (e.g. name of chemical, EC No, CAS No, etc.)
	Tetrabromodiphenyl ether C12H6Br4O	EC No 254-787-2 and others CAS No 40088-47-9 and others CN code ex29093038

PIC Regulation Annex V, the entry for Tetrabromodiphenyl ether

Last changed in the version in force 1 July 2022, by Regulation (EU) 2022/643, the act that change names · Annex V on this site

Annex V, table 1
Description of chemicals/article(s) subject to export ban	Additional details, where relevant (e.g. name of chemical, EC No, CAS No, etc.)
The export ban only applies to articles where the sum of the concentration of tetra-, penta-, hexa-, hepta- and decabromodiphenyl ether is 500 mg/kg or more. By way of derogation from the first paragraph, articles where the concentration is 500 mg/kg or more, due to a higher concentration of decabromodiphenyl ether, are exempted from the export ban, provided that the presence of decabromodiphenyl ether is in compliance with Regulation (EU) 2019/1021 of the European Parliament and of the Council of 20 June 2019 on persistent organic pollutants (OJ L 169, 25.6.2019, p. 45).	Tetrabromodiphenyl ether	EC No 254-787-2 and others CAS No 40088-47-9 and others CN code ex29093038

POPs Regulation Annex I, the entry for Tetrabromodiphenyl ether

Last changed in the version detected 4 September 2026 · Annex I on this site

Annex I, table 1
Substance	CAS No	EC No	Specific exemption on intermediate use or other specification
Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	1. For the purposes of this entry, point (b) of Article 4(1) shall apply to concentrations of tetrabromodiphenyl ether equal to or below 10 mg/kg (0,001 % by weight) where it is present in substances. 2. For the purposes of the entries on tetra-, penta-, hexa-, hepta- and decaBDE, point (b) of Article 4(1) shall apply to the following sum of the concentrations of those substances: (a) 10 mg/kg upon entry into force of this Regulation where they are present in mixtures or articles, except for food contact materials subject to Regulation (EC) No 1935/2004 of the European Parliament and of the Council ; (b) by way of derogation from point (a), 500 mg/kg upon entry into force of this Regulation, 350 mg/kg as of 30 December 2025 and 200 mg/kg as of 30 December 2027 where they are present in mixtures or articles containing or made of recovered material containing tetra-, penta-, hexa-, hepta- or decaBDE, except for food contact materials subject to Regulation (EC) No 1935/2004; (c) by way of derogation from point (a), 500 mg/kg upon entry into force of this Regulation, 350 mg/kg as of 30 December 2025 and 10 mg/kg as of 17 May 2027, where they are present in toys subject to Directive 2009/48/EC of the European Parliament and of the Council , or in any product facilitating children’s seating, sleep, relaxation, hygiene, changing and general body care, feeding, sucking, transportation and protection, containing or made of recovered material containing tetra-, penta-, hexa-, hepta- or decaBDE, except for food contact materials subject to Regulation (EC) No 1935/2004. 3. By way of derogation, the manufacturing, placing on the market and use of the following shall be allowed: electrical and electronic equipment within the scope of Directive 2011/65/EU of the European Parliament and of the Council . 4. Use of articles already in use in the Union before 25 August 2010 containing tetrabromodiphenyl ether shall be allowed. Article 4(2), third and fourth subparagraphs shall apply in relation to such articles.

POPs Regulation Annex IV, the entry for Tetrabromodiphenyl ether C12H6Br4O

Last changed in the version in force 10 June 2023, by Regulation (EU) 2022/2400, the act that change names · Annex IV on this site

Annex IV, table 1
Substance	CAS No	EC No	Concentration limit referred to in Article 7(4)(a)
Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	Sum of the concentrations of tetrabromodiphenyl ether C12H6Br4O, pentabromodiphenyl ether C12H5Br5O, hexabromodiphenyl ether C12H4Br6O, heptabromodiphenyl ether C12H3Br7O and decabromodiphenyl ether C12Br10O: (a) until 29 December 2025, 500 mg/kg; (b) from 30 December 2025 until 29 December 2027, 350 mg/kg, or, if higher, the sum of the concentration of those substances where they are present in mixtures or articles, as set out in the fourth column, point 2, of Annex I for the substances tetrabromodiphenyl ether, pentabromodiphenyl ether, hexabromodiphenyl ether, heptabromodiphenyl ether and decabromodiphenyl ether; (c) from 30 December 2027, 200 mg/kg or, if higher, the sum of the concentration of those substances where they are present in mixtures or articles, as set out in the fourth column, point 2, of Annex I for the substances tetrabromodiphenyl ether, pentabromodiphenyl ether, hexabromodiphenyl ether, heptabromodiphenyl ether and decabromodiphenyl ether.

Look up a number

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Its history

4 September 2026 · amended · POPs Regulation Annex I, the entry for Tetrabromodiphenyl ether

Recorded in the version detected 4 September 2026. The change on its version page

Amended entries, Annex I, table 1
Identifiers	Version	Substance	CAS No	EC No	Specific exemption on intermediate use or other specification
Tetrabromodiphenyl etherCAS 40088-47-9EC 254-787-2	Before	Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	1. For the purposes of this entry, point (b) of Article 4(1) shall apply to concentrations of ~~Tetrabromodiphenyl~~ ether equal to or below 10 mg/kg (0,001 % by weight) where it is present in substances. 2. For the purposes of the entries on tetra-, penta-, hexa-, hepta- and decaBDE, point (b) of Article 4(1) shall apply to the sum of the concentration of those substances up to 500 mg/kg where they are present in mixtures or articles, subject to review and assessment by the Commission by 16 July 2021. This review shall assess, inter alia, all relevant impacts with regard to health and the environment. 3. By way of derogation, the manufacturing, placing on the market and use of the following shall be allowed: electrical and electronic equipment within the scope of Directive ~~2011/65/EC~~ of the European Parliament and of the Council . 4. Use of articles already in use in the Union before 25 August 2010 containing ~~Tetrabromodiphenyl~~ ether shall be allowed. Article 4(2), third and fourth subparagraphs shall apply in relation to such articles.
Tetrabromodiphenyl etherCAS 40088-47-9EC 254-787-2	After	Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	1. For the purposes of this entry, point (b) of Article 4(1) shall apply to concentrations of tetrabromodiphenyl ether equal to or below 10 mg/kg (0,001 % by weight) where it is present in substances. 2. For the purposes of the entries on tetra-, penta-, hexa-, hepta- and decaBDE, point (b) of Article 4(1) shall apply to the sum of the concentration of those substances up to 500 mg/kg where they are present in mixtures or articles, subject to review and assessment by the Commission by 16 July 2021. This review shall assess, inter alia, all relevant impacts with regard to health and the environment. 3. By way of derogation, the manufacturing, placing on the market and use of the following shall be allowed: electrical and electronic equipment within the scope of Directive 2011/65/EU of the European Parliament and of the Council . 4. Use of articles already in use in the Union before 25 August 2010 containing tetrabromodiphenyl ether shall be allowed. Article 4(2), third and fourth subparagraphs shall apply in relation to such articles.

17 November 2025 · amended · POPs Regulation Annex I, the entry for Tetrabromodiphenyl ether

Recorded in the version in force 17 November 2025, by Regulation (EU) 2025/718 and Regulation (EU) 2025/1482, the acts that change names. The change on its version page

Amended entries, Annex I, table 1
Identifiers	Version	Substance	CAS No	EC No	Specific exemption on intermediate use or other specification
Tetrabromodiphenyl etherCAS 40088-47-9EC 254-787-2	Before	Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	1. For the purposes of this entry, point (b) of Article 4(1) shall apply to concentrations of tetrabromodiphenyl ether equal to or below 10 mg/kg (0,001 % by weight) where it is present in substances. 2. For the purposes of the entries on tetra-, penta-, hexa-, hepta- and decaBDE, point (b) of Article 4(1) shall apply to the sum of the ~~concentration~~ of those ~~substances up to 500~~ mg/kg where they are present in mixtures or articles, subject to ~~review~~ and ~~assessment~~ by the ~~Commission by 16 July 2021. This review shall assess, inter alia, all relevant impacts with regard~~ to ~~health and the environment.~~ 3. By way of derogation, the manufacturing, placing on the market and use of the following shall be allowed: electrical and electronic equipment within the scope of Directive 2011/65/EU of the European Parliament and of the Council . 4. Use of articles already in use in the Union before 25 August 2010 containing tetrabromodiphenyl ether shall be allowed. Article 4(2), third and fourth subparagraphs shall apply in relation to such articles.
Tetrabromodiphenyl etherCAS 40088-47-9EC 254-787-2	After	Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	1. For the purposes of this entry, point (b) of Article 4(1) shall apply to concentrations of tetrabromodiphenyl ether equal to or below 10 mg/kg (0,001 % by weight) where it is present in substances. 2. For the purposes of the entries on tetra-, penta-, hexa-, hepta- and decaBDE, point (b) of Article 4(1) shall apply to the following sum of the concentrations of those substances: (a) 10 mg/kg upon entry into force of this Regulation where they are present in mixtures or articles, except for food contact materials subject to Regulation (EC) No 1935/2004 of the European Parliament and of the Council ; (b) by way of derogation from point (a), 500 mg/kg upon entry into force of this Regulation, 350 mg/kg as of 30 December 2025 and 200 mg/kg as of 30 December 2027 where they are present in mixtures or articles containing or made of recovered material containing tetra-, penta-, hexa-, hepta- or decaBDE, except for food contact materials subject to Regulation (EC) No 1935/2004; (c) by way of derogation from point (a), 500 mg/kg upon entry into force of this Regulation, 350 mg/kg as of 30 December 2025 and 10 mg/kg as of 17 May 2027, where they are present in toys subject to Directive 2009/48/EC of the European Parliament and of the Council , or in any product facilitating children’s seating, sleep, relaxation, hygiene, changing and general body care, feeding, sucking, transportation and protection, containing or made of recovered material containing tetra-, penta-, hexa-, hepta- or decaBDE, except for food contact materials subject to Regulation (EC) No 1935/2004. 3. By way of derogation, the manufacturing, placing on the market and use of the following shall be allowed: electrical and electronic equipment within the scope of Directive 2011/65/EU of the European Parliament and of the Council . 4. Use of articles already in use in the Union before 25 August 2010 containing tetrabromodiphenyl ether shall be allowed. Article 4(2), third and fourth subparagraphs shall apply in relation to such articles.

10 June 2023 · amended · POPs Regulation Annex IV, the entry for Tetrabromodiphenyl ether C12H6Br4O

Recorded in the version in force 10 June 2023, by Regulation (EU) 2022/2400, the act that change names. The change on its version page

Amended entries, Annex IV, table 1
Identifiers	Version	Substance	CAS No	EC No	Concentration limit referred to in Article 7(4)(a)
Tetrabromodiphenyl ether C12H6Br4OCAS 40088-47-9EC 254-787-2	Before	Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	Sum of the concentrations of tetrabromodiphenyl ether, pentabromodiphenyl ether, hexabromodiphenyl ether, heptabromodiphenyl ether and decabromodiphenyl ~~ether: 1000 mg/kg. The Commission shall review that~~ concentration ~~limit~~ and shall, where appropriate and in accordance with the Treaties, adopt a legislative proposal to lower that value to 500 mg/kg. The Commission shall carry out such review as soon as possible and, in any event, not later than 16 July 2021.
	After	Tetrabromodiphenyl ether C12H6Br4O	40088-47-9 and others	254-787-2 and others	Sum of the concentrations of tetrabromodiphenyl ether C12H6Br4O, pentabromodiphenyl ether C12H5Br5O, hexabromodiphenyl ether C12H4Br6O, heptabromodiphenyl ether C12H3Br7O and decabromodiphenyl ether C12Br10O: (a) until 29 December 2025, 500 mg/kg; (b) from 30 December 2025 until 29 December 2027, 350 mg/kg, or, if higher, the sum of the concentration of those substances where they are present in mixtures or articles, as set out in the fourth column, point 2, of Annex I for the substances tetrabromodiphenyl ether, pentabromodiphenyl ether, hexabromodiphenyl ether, heptabromodiphenyl ether and decabromodiphenyl ether; (c) from 30 December 2027, 200 mg/kg or, if higher, the sum of the concentration of those substances where they are present in mixtures or articles, as set out in the fourth column, point 2, of Annex I for the substances tetrabromodiphenyl ether, pentabromodiphenyl ether, hexabromodiphenyl ether, heptabromodiphenyl ether and decabromodiphenyl ether.