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Banned Substance

(Z)-2-Methoxymino-2-[2-(tritylamino)thiazol-4-yl]acetic acid

CAS 64485-90-1
8

Safety score · 0–100

Avoid

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

A cephalosporin antibiotic synthesis intermediate — EU-prohibited in cosmetics under Annex II. Carries beta-lactam sensitisation risk; no legitimate cosmetic use exists.

Skin benefits

  • Pharmaceutical synthesis intermediate, not a cosmetic functional

Known concerns

  • EU Annex II prohibited substance
  • Antibiotic precursor with sensitisation risk
  • Beta-lactam allergen lineage
  • No legitimate cosmetic use

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, so always read the physical product label and consult a healthcare professional for personal concerns.