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Item Secification Result
Characts a white or almost white Complies
Crystalline powder
One melting at zbout 195℃ 196℃
Identification Positive Complies
Solution S: Complies with test Complies
Appearance of solution ≤BY5 or GY5 ≤GY5
PH(10%w/v) 3.8-4.3 4.19
Rclated substance one spot ≤1.0%
Any other spot≤0.5% Complies
Heavy metals ≤20ppm <10ppm
Loss on drying ≤2.0% 0.28%
Assay 98.5%-101.0% 99.38%
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