English name: Pyridine
Chinese alias: nitrogen (hetero)benzene; anhydrous pyridine
CAS RN: 110-86-1
EINECS Number: 203-809-9
Molecular formula: C₅H₅N
Molecular weight: 79.1
Structural formula:

Physical and chemical properties:
Properties: Colorless or pale yellow liquid. Has an unpleasant smell.
Boiling point: 115.5°C
Freezing point: -42°C
Relative density: 0.9830g/cm3
Refractive index: 1.5095
Flash point: 20°C
Solubility: soluble in water, ethanol, acetone, ether and benzene.
Uses: Mainly used as a raw material in the pharmaceutical industry, used as a solvent and alcohol denaturant, and also used in the production of rubber, paint, resin and corrosion inhibitor.