2,3,4-Trichlorobut-1-ene
Avoid
CAS Number: 2431-50-7
About 2,3,4-Trichlorobut-1-ene
2,3,4-Trichlorobut-1-ene is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.
Detailed Analysis
2,3,4-Trichlorobut-1-ene is a highly chlorinated unsaturated hydrocarbon with the double bond between C1 and C2 and three chlorine atoms at C2, C3, and C4. The allylic dichloromethylene group (CCl2 adjacent to a double bond) is a structural alert for carcinogenicity, and the overall degree of chlorination raises concerns for environmental persistence. While not listed in EU Annex II (banned substances), the structural characteristics suggest this compound would face severe restrictions if submitted for cosmetics review. It is more characteristic of industrial intermediates than cosmetic ingredients.
Known Concerns
- ⚠ Highly chlorinated structure raises environmental persistence concerns
- ⚠ Structural alert for carcinogenicity from allylic CCl2 group
- ⚠ Not a traditional cosmetic ingredient - industrial intermediate
- ⚠ Potential for bioaccumulation of chlorinated hydrocarbons
- ⚠ Lack of cosmetics safety data
Safety Score
Avoid
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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Download LuxSenseThis information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.