| Description A |
Dark red, crystalline powder |
| Identification |
A: By UV |
Should comply with working standard |
| B: By color test |
The Red color does not disappear |
| Solubility |
Sparingly soluble in water: slightly soluble in C2H5OH (99.5%); practically insoluble in acetonitrile. |
| Appearance of solution (0.2 % w/v in water) |
The solution is clear & having red color |
| Related substances by HPLC |
Individual impurity |
NMT 0.5 % |
| Total impurity |
NMT 2.0 % |
| Water By Karl Fischer apparatus) |
NMT 12.0 % |
| Assay By HPLC |
NLT 98.0 % w/w on anhydrous basis |
