ITEMS	STANDARD
Description	White crystals powder or granules
Identification	Meets the requirements
Organic volatile	Meets the requirements
Loss on drying, %	3.0 max (Anhydrate)
	6.0-7.5 (Monohydrate)
Reducing substances, %	1.0 max
Assay, %	97.0-103.0
Heavy metals, %	0.002 max
Conclusion Compiles with the requirements of USP31Ed