| Property | Specification |
| Appearance | Amber to brownish liquid |
| Odor | Slightly aromatic, pungent |
| Molecular Formula | C15H10N2O2 |
| Molecular Weight | 250.25 g/mol |
| Density | 1.23–1.24 g/cm³ (at 25°C) |
| Boiling Point | 310°C (590°F) |
| Melting Point | 32°C (89.6°F) |
| Solubility | Insoluble in water, soluble in organic solvents (e.g., toluene, acetone) |
| Viscosity | 200–400 mPa·s (at 25°C) |
| Refractive Index | 1.570 (at 25°C) |
| Vapor Pressure | 0.0001 mmHg (at 25°C) |
| Flash Point | 210°C (410°F) |
