| Ingredients |
4-Hydroxy, 2-Methyl-2h-1,2-Benzothiazine Carboxylic Acid Methyl Ester-1,1-Dioxide |
| |
| Molecular Formula |
C11H11NO5S |
|
| |
| Molecular Weight |
269.0 |
| |
| Appearance |
Off white crystalline powder |
| |
| Solubility |
Soluble in Chloroform |
| |
| Melting Range |
160°C -166°C |
| |
Related Substance
|
| By TLC |
:No secondary spot is seen |
| By HPLC |
:Not more than 1.0% w/w |
|
| |
| Water by KF |
0.5% max |
| |
Residual Solvent
By HS-GC |
| Methanol |
: 500 ppm max. |
| o-Xylene |
: 1000 ppm max. |
| DMF |
: 880 ppm max. |
|
| |
| Assay (Dry basis) |
Not less than 97% and not more than 101% |
