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O-TOLUALDEHYDE

CAS 529-20-4
62

Safety score · 0–100

Fine

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

O-Tolualdehyde is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

o-Tolualdehyde (2-methylbenzaldehyde) is an aromatic aldehyde with an almond-like odor used as a fragrance ingredient. It is listed in IFRA (International Fragrance Association) standards with recommended concentration limits. Aldehydes in this class can act as weak sensitizers, particularly at elevated concentrations. No specific EU Annex restrictions were identified for this ingredient, but fragrance allergen labeling requirements apply under EU Cosmetics Regulation Annex III.

Skin benefits

  • Fragrance component

Known concerns

  • Potential skin sensitization at high concentration
  • Fragrance allergen potential
  • IFRA concentration restrictions apply

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.