CAS Registry Number: 73-24-5
Formula: C₅H₅N₅
Molecular Formula: 135.13
Appearance:white to almost white crystalline powder
Density: 1.612 g/cm3
Boiling Point: 553.5 °C at 760 mmHg
Melting Point: 360-365°C
Flash Point: 322.7 °C