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Hydrocarbons, C1-4, if they contain > 0.1% w/w Butadiene

CAS 68514-31-8
3

Safety score · 0–100

Avoid

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

A broad-cut petroleum hydrocarbon fraction covering methane through butane, with potential 1,3-butadiene contamination that renders it prohibited as a cosmetic ingredient under EU Annex II.

This C1-4 hydrocarbon mixture encompasses gases and very light liquids from natural gas and petroleum refining. Butadiene contamination above 0.1% w/w triggers EU Annex II prohibition under Regulation 1223/2009, as 1,3-butadiene is a Category 1A carcinogen per CLP. The broad and variable composition of this stream makes it impossible to define safe cosmetic use. Entirely an industrial/refinery feedstock.

Known concerns

  • 1,3-Butadiene >0.1% w/w — EU Annex II prohibited carcinogen
  • Variable hydrocarbon composition without defined safety profile
  • Flammable gas mixture with no established cosmetic application

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.