Items	Standards	Results
Characterstic	White or faintly yellow powder	Faintly yellow powder
Specific rotation	+72°~ +80°	+78.2°
PH	7.5~10.5	8.1
Completeness of solution	Comply	Comply
Dexamethasone	≤0.5%	0.05%
Other individual  impurity	≤0.5%	0.24%
Total impurity	≤2.0%	0.86%
Loss on dry	≤16.0%	2.0%
Assay	96.0%~102.0% C22H28FNa2O8P	97.6%