Chinese chemical name: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid ethyl ester
Uses: gatifloxacin intermediate
Molecular formula: C16H15F2NO4
Appearance Light yellow to white powder
Infrared identification is consistent with standard IR patterns
Content ≥98.0% (HPLC)
Single impurity ≤1.0%
Melting point 182~186°C
Combustion residue ≤0.2%
Loss on drying ≤0.5%