Skip to content

2-ISOBUTYLQUINOLINE

CAS 93-19-6
58

Safety score · 0–100

Moderate

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

About

2-ISOBUTYLQUINOLINE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

2-Isobutylquinoline is a quinoline derivative functioning as a fragrance ingredient with a distinctive bitter, medicinal, and leather-like odor profile. It is not listed in EU Annexes II or III. Quinoline and its derivatives have raised some toxicological concerns in occupational settings, but as a fragrance ingredient used at trace levels, systemic exposure is minimal. The compound has been evaluated by IFRA for safe use in fragrance compositions. Limited independent toxicological assessment data is available, and the isobutyl substituent reduces volatility compared to unsubstituted quinoline.

Skin benefits

  • Provides distinctive bitter, leather fragrance notes
  • Adds complexity to perfumery compositions

Known concerns

  • Limited independent toxicological assessment data
  • Quinoline structural alerts require evaluation
  • Mild skin sensitization potential at high concentrations

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Check your shelf

Find 2-ISOBUTYLQUINOLINE in your products.

Scan any cosmetic product with LuxSense to see if it contains 2-ISOBUTYLQUINOLINE and get a full ingredient breakdown with safety scores.

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.