February 15, 2025

Sulfapyridine

Product name:     Sulphapyridine
Expiry Date:  Three years
Inspection Standard:  USP25
Items Specifications Results
Description off-white or yellowish-white crystalline powder off-white crystalline powder
Clarity and colour of solution Clear not deeper than pale yellow Clear not deeper than pale yellow
Identification Conform Withmonograph A.B.C Pass
Melting point 190–193℃ 190.4–191.2℃
Heavy metals ≤0.002% Pass
Acidity ≤0.2ml 0.19ml
Loss on drying ≤0.5% 0.24%
Sulphated ash ≤0.1% 0.08%
Assay  99.0—101.0% 99.52%
Conclusion : PASS

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