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CUPRIC OXIDE

CAS 1317-38-0
22

Safety score · 0–100

Caution

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

About

A copper(II) oxide with Danger classification due to aquatic toxicity, skin sensitisation, respiratory effects, and organ toxicity.

Cupric Oxide (CuO) carries GHS hazard statements H400 (acute aquatic hazard), H410 (chronic aquatic hazard), H317 (skin sensitisation), H335 (respiratory irritation), and H370 (organ effects — respiratory tract), resulting in the highest hazard classification of Danger. It is not a standard cosmetic ingredient and has no EU CosIng listing, making its use in cosmetic formulations highly unlikely and inadvisable.

Known concerns

  • H400/H410 — aquatic toxicity (very toxic to aquatic life)
  • H317 — skin sensitisation
  • H370 — organ effects (respiratory tract)
  • H335 — respiratory irritation
  • Danger signal word
  • Heavy metal — bioaccumulation concern

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.