molecular formula: c13h19no4s
molecular weight: 285.36
standard: usp35
[appearance] white crystalline powder.
[packing]：25kg/drum
[valid period]24 months
[storage]preserved in an airtight container and avoid exposure to high temperature.
physical property: white crystalline power, odourless, slightly bitter in taste.
chemical property: soluble in acetone,slightly soluble in alcohol or chloroform,hardly soluble in water,soluble in dilute sodium hydroxide solution,dardly soluble in dilute acid.
application: mainly used for sensitive bacteria infection, for antigout drug.
key control item:
melting point :198℃-200℃
ph (acidity) : nmt 0.5 ml is required to produce a pink color confirmed
selenium : ≤0.003%
loss on drying :≤0.5%
residue on ignition :≤0.1%
heavy metals(pb) : ≤0.002%
any individual impurity:≤0.5%
total impurity:≤2.0%