| S.No | Test | Specification |
| 1. | Description | A off-white to light brown colour crystalline powder |
| 2. | Solublity | Soluble in methanol, methylene dichloride and ethyl acetate. Insoluble in n-hexane. |
| 3. | Identification by IR | The sample and standard IR spectra are concordant |
| 4. | Loss on drying | Not more than 1.0% w/w |
| 5. | Melting Range | 100ºC to 105ºC |
| 6. | Sulphated Ash | Not more than 0.2% w/w |
| 7. | Purity by HPLC | Not less than 98.0% |