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Overview
2,3,5,6-Tetrafluoroterephthaloyl chloride is a high-purity fluorinated acyl chloride derived from 2,3,5,6-tetrafluoroterephthalic acid via thionyl chloride or oxalyl chloride chlorination. Its molecular formula is C8F4Cl2O2 (CAS: 100979-55-5), serving as a critical intermediate for synthesizing advanced fluoropolymers.
Application
- High-performance liquid crystal polymers (LCPs) manufacturing
- Synthesis of fluorinated polyimides for aerospace insulation
- Production of specialty pharmaceutical APIs requiring fluorine substitution
Precautions
Strictly store under inert atmosphere at temperatures below 25°C. Use full PPE including acid-resistant gloves and face shields due to severe corrosivity and moisture sensitivity releasing toxic HCl gas upon hydrolysis.