Solubility : Practically insoluble in water ; slightly soluble in acetone; soluble in dimethylformamide; very slightly soluble in ethanol (96%) and in methanol
Clarity of solution : A 5.0% w/v solution in dimethylformamide is clear
Loss on drying : Not more than 0.5% Sulphated Ash : Not more than 0.1% Heavy Metals : Not more than 10 ppm Assay [on Dried Basis] : Between 99.0% - 100.5 % on dried basis