| ITEMS | SPECIFICATION |
| Appearance | A clear, colourless to pale yellow colour liquid. |
| Miscibility | Miscible with methanol immiscible with water. |
| Identification (by GC) | In test for GC purity principal peak retention time in the chromatogram obtained with the sample must be identical the principal peak retention time in the chromatogram obtained with standard |
| Water (% w/w, by KF) | Not more than 0.2% |
| Assay (by GC, by HPLC) | Not less than 99.0% |