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DIISOBUTYL OXALATE

CAS 13784-89-9
48

Safety score · 0–100

Moderate

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

About

Diisobutyl Oxalate is a cosmetic ingredient used in product formulations. Note: subject to regulatory restrictions in some markets. Exercise caution due to limited available safety data.

DIISOBUTYL OXALATE is listed in EU Annex III (part 3), indicating restricted use in cosmetic products. Oxalate esters can undergo transesterification in skin, releasing oxalic acid which is a known skin irritant at elevated concentrations. The restriction notation 'III/3' specifies it is permitted only under defined concentration limits.

Known concerns

  • EU Annex III restricted — specific limits apply
  • Potential skin irritant via oxalic acid release
  • Limited cosmetic usage data

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.