Skip to content

Other

HC BROWN NO. 2

CAS 83803-99-0
35

Safety score · 0–100

Caution

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A hair dye compound listed in EU Annex II/1297 as a prohibited substance for oxidative hair dye formulations—use is restricted to non-oxidative products only.

HC Brown No. 2 is listed under EU Regulation (EC) No 1223/2009 Annex II/1297 as a prohibited oxidative hair dye substance. While not entirely banned, its use is restricted to non-oxidative conditions only, and it carries the signal word 'Danger' with hazard statements including H350 (carcinogenicity concern) and H410 (aquatic toxicity).

Known concerns

  • Restricted to non-oxidative hair dye formulations only
  • Prohibited as oxidative hair dye (EU Annex II)
  • Carcinogenicity concern (H350)
  • Aquatic toxicity (H410)

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related others

35
1,3-Benzenediamine, 4-methyl-, hydrochloride (1:1)
Other
 35
1,5-Di-(beta-hydroxyethylamino)-2-nitro-4-chlorobenzene (see note 17)
Other
 35
2,2'-Methylenebis(6-bromo-4-chlorophenol)
Other
 35
2,4-DIAMINO-5-METHYLPHENETOLE HCL
Other
 35
2-CHLORO-6-ETHYLAMINO-4-NITROPHENOL
Other
 35
2-Ethylhexyl 4-(dimethylamino)benzoate / Padimate O (USAN:BAN)
Other
 35
3-(p-Chlorophenoxy)-propane-1,2-diol
Other
 35
3-Hydroxy-N-(o-tolyl)-4-[(2,4,5-trichlorophenyl)azo]naphthalene-2-carboxamide
Other

Check your shelf

Find HC BROWN NO. 2 in your products.

Scan any cosmetic product with LuxSense to see if it contains HC BROWN NO. 2 and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.