







Test Items
|
Quality Standard
|
Appearance
|
White crystalline powder insoluble water and soluble in methanol
|
Melting point
|
116-118°C
|
Loss on drying
|
0.5%
|
Residue on ignition
|
0.1%
|
Heavy metals
|
10ppm
|
Assay
|
≥99.0%
|