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HC YELLOW NO. 5

CAS 56932-44-6
22

Safety score · 0–100

Caution

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

Hc Yellow No. 5 is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

HC Yellow No. 5 is listed in EU Annex II (Regulation 1223/2009) which prohibits its use in cosmetic products due to concerns about its genotoxic and mutagenic potential. The compound is structurally related to other azo-dye intermediates that can metabolise to carcinogenic aromatic amines. Its restriction reflects the precautionary approach taken by the EU for hair dye precursors with uncertain safety profiles.

Known concerns

  • EU Annex II — PROHIBITED in cosmetics (mutagenicity concerns)
  • Potential metabolic breakdown to carcinogenic aromatic amines

References

EU

EU CosIng database

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

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Same plant / compound family

38
HC YELLOW NO. 10
Hair dye (HC nitrophenylamine)
 42
HC YELLOW NO. 11
Other
 30
HC YELLOW NO. 12
Other
 55
HC YELLOW NO. 13
Hair Dye
 50
HC YELLOW NO. 14
Direct hair dye
 50
HC YELLOW NO. 15
Hair Dye

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