Key fluorinated pyridine intermediate. Chlorine and trifluoromethyl groups enable substitution and coupling reactions. Mainly used for synthesis of anti-inflammatory, antibacterial and antitumor drugs, improve molecular stability and bioactivity. Also applied in high-efficiency pesticide production and fine chemical derivative preparation. Widely used in pharmaceutical research and organic synthesis.

Flammable liquid with irritancy. Volatile vapor stimulates respiratory tract, operate in ventilated area with protective mask. Avoid skin and eye contact, rinse immediately with plenty of water once exposure occurs. Thermal decomposition produces toxic halogen gas. Keep away from fire source and high temperature. Store separately from food. Dispose waste strictly as hazardous waste.