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DIBENZOTHIOPHENE

CAS 132-65-0
30

Safety score · 0–100

Caution

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

About

A sulfur-containing polycyclic aromatic compound better known as an environmental pollutant than a cosmetic. Strongly disfavored for topical use.

Dibenzothiophene (CAS 132-65-0) is a sulfur-containing tricyclic aromatic hydrocarbon structurally related to polycyclic aromatic hydrocarbons (PAHs). It is primarily encountered as a petroleum fuel contaminant and industrial feedstock, not as a conventional cosmetic ingredient. PAH-class compounds are broadly flagged as environmental pollutants, aquatic toxicants, and potential genotoxins. There is no SCCS, CIR, or FDA cosmetic review establishing safe use levels. Any appearance in cosmetic databases likely reflects niche specialty or experimental use. Default stance for this class of molecule in personal care is avoidance.

Function

ANTIOXIDANT

Skin benefits

  • Historical niche use as a chemical intermediate
  • Sulfur-aromatic structure with UV-absorbing properties

Known concerns

  • Dibenzothiophene is a PAH-class compound associated with petroleum contamination
  • Documented environmental pollutant and aquatic toxicant
  • No established cosmetic safety dossier
  • PAH-class molecules are broadly disfavored in cosmetic use
  • Potential genotoxicity and bioaccumulation concerns

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.