Skip to content

Other

4-tert-Butylbenzoic acid

CAS 98-73-7
22

Safety score · 0–100

Caution

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

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.

Related others

22
(4-Ethoxyphenyl)(3-(4-fluoro-3-phenoxyphenyl)propyl)dimethylsilane
Other
 22
1,3-Benzenediamine, 4-methyl-, hydrochloride (1:2)
Other
 22
1,4-BUTANEDIOL DIMETHACRYLATE
Other
 22
1-NITROPROPANE
Other
 22
3-Chloro-4-(3-fluorobenzyloxy)aniline
Other
 22
4-T-BUTYLBENZOIC ACID
Other
 22
BUTYLPHTHALIMIDE
Other
 22
Carbendazim
Other

Check your shelf

Find 4-tert-Butylbenzoic acid in your products.

Scan any cosmetic product with LuxSense to see if it contains 4-tert-Butylbenzoic acid 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, so always read the physical product label and consult a healthcare professional for personal concerns.