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Antimicrobial

BIS-ETHYLQUINOLINIUM ETHYLQUINOLINIDENEPENTADIENE IODIDE

65

Safety score · 0–100

Fine

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

About

A quinolinium-based cationic dye with antimicrobial properties — used primarily in oral care products.

A cyanine-type dye based on ethylquinolinium moieties linked by a pentadiene chain with an iodide counter-ion. Functions as an antimicrobial, antiplaque, and oral care agent. Cyanine dyes exhibit photosensitizing properties and can generate reactive oxygen species under light exposure. The iodide component may pose concerns for iodine-sensitive individuals. Limited cosmetic safety data.

Function

ANTIMICROBIALANTIPLAQUEORAL CARE

Skin benefits

  • antimicrobial
  • antiplaque

Known concerns

  • potential photosensitizer
  • iodide content — concern for iodine-sensitive individuals
  • limited safety data
  • cationic dye

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.