Quality standard
Test items
Standard
Results
Appearance
White to off-white Crystalline powder
Complies
Melting Point
239-241°C
239.7-240.6°C
Assay(HPLC)
99.50% min
99.84%
Moisture
0.5% max
0.10%
Unknown Impurity
2-Chlorobenzoic Acid
Residue on Ignition
0.1% max
Conclusion