Soluble in ethanol , very slightly soluble in water
Pass
Identification
Comply with reference
Pass
Water content
≤2.0%
0.8%
Sulfate ash
≤0.50%
0.10%
Melting point
138.0-148.0℃
143.5℃
Pyridine
≤500ppm
<500ppm
Heavy metals
≤20ppm
<20ppm
Thiamine disulfide
≤1.0%
<1.0%
Assay (On dry basis)
98.5-101.0%
99.9%
Purity(HPLC)
≥98.0%
99.7%
Payment
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