Used in the treatment of bronchial asthma, asthmatic bronchitis, emphysema, patients bronchospasm.
According to customer requirements for packaging
white oralmost white,crystalline powder
Freely soluble in water,practically insoluble or very slightly soluble in alcohol and in methylene chloride.
The UV absorption spectrum of the sample shows an absorption maximum at 276nm.The specific absorbance at the Maximum is55 to 64.
Infraed absorption spectrophotometry.
Chromatogram obtained with test solution (b) is similar in position color size to the principal spot in the chromatogram obtained with the reference solution.
An orange-red color develop in methylene chloride layer.
It geves reaction (a) of sulphates.
Appearance of solution
Solution S is clear and not more intensely coloured than reference solution in BY6.
-0.10° to +0.10°determined on solution S.
Acidity or alkalinity
NMT 0.4ml of 0.01M HCL is required to change the color of the indicator to red.
Impurity J ≤0.20%
Any other impurity ≤0.30%
Total impurity ≤1.0%
Loss on drying
Assay(on dried basis)