Buy Sulfapyridine (Sulphapyridine) Powder Raw Sulfonamide Antibacterial Medication Online CAS 144-83-2
Sulphapyridine Specification
Product Name: Sulfapyridine CAS: 144-83-2 Content: 99% Appearance: white powder Packing: 25kg/cardboard drum detachable Ingredients: 2-sulfapyridine (SPD) Physical and chemical properties: white crystalline powder Category: Pharmaceutical raw materials Field: Intermediates Down-draft product: sulfasalazine Use: Intermediate of sulfasalazine
Sulphapyridine Certificate of Analysis
Product name
Sulphapyridine（SP）
CAS No.
144-83-2
Outer Packing
25kg/drum
Production date
20170907
Shelf life
20190906
Standard adopted
Enterprise standard
Items of analysis
Specification
Results
Apperance
Off-White or yellow -white crystalline powder
Off-White crystalline powder
Identification
Conform With monograph A,B
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Clarity and colour of solution
Clear not deeper than pale yellow
Clear not deeper than pale yellow
Solubility
Very slightly soluble in water,slightly soluble in ethanol(96%)sparingly soluble in acetone.It dissolves in dilute mineral acids and in solutions of alkali hydroxides
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Related substance
Single impurity NMT0.5%
0.22%
Melting point
190-193℃
190.5-191.4℃
Selenium
NMT0.003%
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Heavy metals
NMT0.002%
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Acidity
NMT0.2ml
Confirm
Loss on drying
NMT0.5%
0.34%
Residue on ignition
NMT0.1%
0.09%
Assay
99.0-100.5%
99.67%
Conclusion
Qualified
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