Styrene  is an organic compound with the chemical formula C6H5CH=CH2. This derivative of benzene is a colorless oily liquid, although aged samples can appear yellowish. The compound evaporates easily and has a sweet smell, although high concentrations have a less pleasant odor. Styrene is the precursor to polystyrene and several copolymers.

CAS Number：100-42-5

Melting point：-30℃

Boiling Point：145℃

Flash point：31℃