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4-tert-Butylbenzoic acid

CAS 98-73-7 Updated
22

Safety score · 0–100

Caution

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

About

4-tert-Butylbenzoic acid is classified by EU CLP as suspected of damaging fertility (H361f). Inappropriate as a deliberate cosmetic ingredient and considered an undesirable impurity.

Skin benefits

  • Limited functional use — usually a process residue, not deliberate cosmetic ingredient

Known concerns

  • EU CLP H361f — suspected of damaging fertility (Repr. 2)
  • ECHA SVHC candidate for endocrine/reproductive concerns
  • Skin sensitization signals in structural relatives
  • Not appropriate for leave-on cosmetic use

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.