Chinese name: pyrimidine

English name: Pyrimidine

Chinese alias: m-diazine; m-(di)azepine

English alias: 1,3-Diazabenzene; 1,3-Diazine; Metadiazine; Miazine; NSC 89305; m-Diazine

CAS Number: 289-95-2

Molecular formula: C4H4N2

Molecular weight: 80.088

Appearance: Colorless oily liquid or crystalline block

Density (g/mL, 25/4℃): 1.1016

Melting point (ºC): 20-22

Boiling point (ºC, normal pressure): 123-124

Boiling point (ºC, 5.2kPa): not available

Flash point (ºC): 31

Used as raw materials for pharmaceutical intermediates, sensitizers, etc.