2,3-pyridinedicarboxylic anhydride

'- Molecular Formula: C7H3NO3 - Molecular Weight: 149.1 - Density: 1.6±0.1 g/cm3 - Boiling Point: 334.6±15.0°C at 760 mmHg - Melting Point: 137-139 °C(lit.) - Flash Point: 156.2±20.4°C