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Gases (petroleum), hydrogen absorber off, if they contain > 0,1% w/w Butadiene

CAS 68477-96-3
2

Safety score · 0–100

Avoid

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

A hydrogen absorber off-gas containing butadiene above 0.1% w/w, placing it in the strictest prohibited category (EU Annex II CMR Cat 1A) under EU cosmetic regulation.

Off-gas stream from a hydrogenation reactor used to saturate refinery streams, containing residual C1–C4 olefins including 1,3-butadiene above the 0.1% w/w conditional trigger. The butadiene specification means this substance is classified as CMR Cat 1A under EU Regulation 1223/2009 Annex II and is absolutely prohibited from cosmetic use in EU markets, reflecting the EU's zero-tolerance approach for confirmed human carcinogens in consumer cosmetic products.

Known concerns

  • Contains 1,3-butadiene >0.1% w/w — EU Annex II CMR Cat 1A carcinogen, prohibited in cosmetics
  • Hydrogenation process gases with high volatility and inhalation toxicity
  • IARC Group 1 human carcinogen — no cosmetic use permissible under EU law

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.