Molecular Formula  C16H15F2NO4
Molecular Weight  323.29
CAS Registry Number  112811-71-9

Description Yellowish crystalline powder
Assay Not less than 98.0%
Related substances Single impurity:Not more than0.5%
Total impurities: Not more than1.0%
Loss on drying Not more than 0.5%
Melting point 182-186
Residue on ignition Not more than 0.2%