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Methylmercuric chloride

CAS 115-09-3
3

Safety score · 0–100

Avoid

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

About

Methylmercuric Chloride is a cosmetic ingredient. Raw material is classified as a suspected carcinogen. Exercise caution due to limited available safety data.

Methylmercuric chloride (CH3HgCl) is an organomercury compound classified as a CMR Category 1B substance. It carries H300 (fatal if swallowed), H310 (fatal in contact with skin), H330 (fatal if inhaled), H351 (suspected carcinogen), H362 (developmental toxicity), H372 (organ toxicity), and H400/H410 (environmental hazard) statements. Mercury compounds are absolutely prohibited in cosmetic products under EU Regulation 1223/2009 Annex II, particularly due to developmental neurotoxicity concerns.

Known concerns

  • Confirmed developmental neurotoxicant (H362)
  • Acute toxicity (H300/H310/H330)
  • Environmental hazard (H400/H410)
  • EU Annex II mercury prohibition
  • CMR Category 1B substance

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.