| Property | Specification |
| Appearance | Yellow to amber liquid |
| Odor | Aromatic, characteristic odor |
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 174.14 g/mol |
| Density | 1.23 g/cm³ (at 25°C) |
| Boiling Point | 251°C (484°F) |
| Melting Point | -20°C (-4°F) |
| Solubility | Insoluble in water, soluble in organic solvents like toluene, xylene, acetone |
| Viscosity | 30–45 mPa·s (at 25°C) |
| Refractive Index | 1.573 (at 25°C) |
| Vapor Pressure | 0.03 mmHg (at 20°C) |
