| S.No. | TEST | SPECIFICATION |
| 1 | Appearance | Colorless or light yellow viscous liquid. |
| 2. | Miscibility | Miscible with most organic solvents and immiscible with water. |
| 3. | Identification by IR | The infrared absorption spectrum of sample is concordant with that of working standard spectrum. |
| 4. | Water content by KF | Not more than 0.5% |
| 5 | Related substances by GC (%) | |
| 1,4-Dichlorobutane | Not more than 0.5% | |
| Dimer | Not more than 0.5% | |
| Individual unspecified Impurity | Not more than 0.5% | |
| Total impurities | Not more than 2.0% | |
| 6. | Purity by GC (%) | Not less than 98.0%. |