HC RED NO. 1

Restricted CAS: 2784-89-6CosIng #34204

HC RED NO. 1 is permitted in cosmetics within the EU subject to the conditions laid down in Regulation (EC) No 1223/2009. Review the restrictions, permitted concentration and Safety Gate alerts.

Regulatory status as of 2026-08-28 (per the CosIng database).

About the ingredient

2-Nitro-N1-phenylbenzene-1,4-diamine

EU regulatory status

Annex of Regulation (EC) No 1223/2009: Annex III/258

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 HC RED NO. 1 safe in cosmetics?

    HC RED NO. 1 is permitted in cosmetics in the EU, but subject to the conditions set out in Regulation (EC) No 1223/2009 — typically a maximum concentration, product category or a mandatory warning on the packaging. Manufacturers must comply with these limits.

  • In which annex of Regulation 1223/2009 is HC RED NO. 1 listed?

    HC RED NO. 1 is listed under reference Annex III/258 in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. 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 HC RED NO. 1 perform in cosmetics?

    According to the European Commission's CosIng database, HC RED NO. 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 HC RED NO. 1?

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

Want to know when a cosmetic on your shelf gets recalled?

BeautyGuard lets you add cosmetics to a watchlist and cross-check them against the EU Safety Gate database. See plan details and email notifications on the pricing page.