DISPERSE BROWN 1

Banned in specific cases CAS: 23355-64-8CosIng #33682

DISPERSE BROWN 1 must not be used as a substance in hair dye products in the EU — Annex II, entry 1260 of Regulation (EC) No 1223/2009. The prohibition is limited to that use; the entry is quoted in full below.

Regulatory data checked on 2026-09-05. The legal status follows Regulation (EC) No 1223/2009 and its annexes; the substance is identified from the European Commission's CosIng database.

About the ingredient

2,2'-[[3-chloro-4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]imino]bisethanol (CI 11152)

EU regulatory status

Annex of Regulation (EC) No 1223/2009: II/1260

2,2'-((3-Chloro-4-((2,6-dichloro-4-nitrophenyl)azo)phenyl)imino)bisethanol (Disperse Brown 1) and its salts, when used as a substance in hair dye products

Source: the European Commission's official CosIng database and Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products. How we assess ingredients — full methodology.

Last updated:

Functions in cosmetics

Frequently asked questions

  • Is DISPERSE BROWN 1 safe in cosmetics?

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  • In which annex of Regulation 1223/2009 does DISPERSE BROWN 1 fall?

    DISPERSE BROWN 1 falls under reference II/1260 in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. An annex entry may name a substance directly or cover it as part of a broader category. The first part (Roman numeral) indicates the annex: II – prohibited substances, III – substances restricted by conditions, IV – permitted colorants, V – permitted preservatives, VI – permitted UV filters.

  • What functions does DISPERSE BROWN 1 perform in cosmetics?

    According to the European Commission's CosIng database, DISPERSE BROWN 1 performs the following functions in cosmetics: HAIR DYEING. Functions are defined in the CosIng glossary and describe the technological role of a substance in the finished product.

  • Are there Safety Gate alerts concerning DISPERSE BROWN 1?

    Our copy of the EU Safety Gate database currently contains no alerts linking DISPERSE BROWN 1 to a cosmetic recall. The database is refreshed regularly from the European Commission's official Safety Gate system.

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