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METHENAMMONIUM CHLORIDE

CAS 76902-90-4
55

Safety score · 0–100

Moderate

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

About

Methenammonium Chloride is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Methenammonium chloride is a quaternary ammonium compound with antimicrobial and antistatic properties. QACs are used in cosmetics as preservatives and surfactants, but certain QACs are restricted under EU Annex III due to concerns about respiratory sensitization and endocrine disruption (e.g., CTAC, benzalkonium chloride). This specific QAC requires individual EU safety evaluation. Not definitively listed in current EU cosmetic annexes.

Skin benefits

  • Antimicrobial/preservative function
  • Anti-static properties improve product texture
  • Surfactant functionality

Known concerns

  • Quaternary ammonium compounds may be respiratory sensitizers
  • Some QACs restricted in EU Annex III (e.g., cetrimonium bromide)
  • Limited specific safety data for this compound
  • Possible aquatic toxicity

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.