| 1 | Appearance | Volatile, clear, colourless liquid. | Volatile, clear, colourless liquid. | BP |
| 2 | Solubility | Complies | Miscible with water and with ethanol (96%) | BP |
| 3 | Identification A (Relative density, 20°C) | 0.791 | 0.790 to 0.793 | BP |
| 4 | Identification B (By Chemical test) | Complies | An intense red colour should produce which becomes violet with the addition of 3.5 mL of acetic acid | BP |
| 5 | Identification C (By Chemical test) | Complies | A greenish-blue colour should produce. | BP |
| 6 | Appearance of solution | Complies | Clear and colourless solution | BP |
| 7 | Acidity or Alkalinity | Complies | The solution should red or orange. | BP |
| 8 | Relative density, 20°C | 0.791 | 0.790 to 0.793 | BP |
| 9 | Reducing substances | Complies | The mixture should not completely decolourise. | BP |
| 10 | Related substances: Impurity A (Methanol) | 0.025% | NMT 0.05% v/v | BP |
| 11 | Related substances: Impurity B (2-Propanol) | Not detected | NMT 0.05% v/v | BP |
| 12 | Related substances: Impurity C (Benzene) | Not detected | NMT 2ppm v/v | BP |
| 13 | Related substances: Any other impurity | 0.003% | NMT 0.05% v/v | BP |
| 14 | Matter insoluble in water | Complies | Clear solution | BP |
| 15 | Residue on evaporation | 10 ppm | NMT 50ppm | BP |
| 16 | Water | 2.4g/l | NMT 3 g/l | BP |