| Tests |
In House Specifications |
| Description |
White or almost white powder |
| Solubility |
Freely soluble in water.Practically insoluble in most of Organic solvents. |
IDENTIFICATION
IR
TLC
|
Infrared absorption spectrophotometry to compare with the spectrum obtained with Reference Standard
To compare with corresponding reference spot |
| Melting range |
161.0° to 165.0°C |
| Specific absorbance |
Absorbtion maximum at 260 nm.Specific absorbance between 395 and 425(dried substance) |
| Specific optical rotation |
-0.2º to +0.2º for 5% solution in purified water. |
| pH |
6.5-7.5 |
| Heavy metals |
Not more than 20 ppm |
| Loss on drying |
NMT 2.0% w/w |
| Sulphated ash |
NMT 0.20%w/w |
| Sulphates |
NMT 200ppm |
| chlorides |
NMT 300ppm |
Related Substance by HPLC)
Single impurity
Total Impurity |
NMT 0.2%
NMT 1.0% |
| Assay ( On dried basis) |
Between 98.0% and 102.0% w/w |
