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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.

About

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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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.