Items
Standards
Appearance
A white or almost white crystalline powder
Identification
Corresponding
Pyridine
0.05%max
Turbidity of solution
Clear and colorless
PH
3.0-4.0
Loss on drying
13.0-15.0%
Crystallinity
Meet the requirement
Heavy metals
20ppm max
Transmittance
90%min
Residual solvents
Acetone: 5000ppm max
Bacterial endotoxins
0.1EU/mg max
Assay
95.0-102.0%