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Fragrance ingredient

METHOXY-METHYLBUTANETHIOL

CAS 94087-83-9
40

Safety score · 0–100

Moderate

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

A sulfur-containing aroma chemical used in very small amounts in fragrance blends. Like many thiols it is pungent and can irritate skin if formulated above recommended trace levels.

Skin benefits

  • Used at trace levels in fragrance compositions to add character notes
  • Effective at very low concentrations, limiting overall exposure

Known concerns

  • Thiols are potent odour molecules and known skin/respiratory irritants at higher levels
  • Fragrance ingredients are common contact allergens
  • No dedicated SCCS or CIR safety review for this specific compound
  • Limited public toxicology data beyond supplier safety sheets

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.