CAS No.117-80-6
Molecular formula：C₁₀H₄CI₂O₂
Structural formula：

Appearance and properties: yellow crystal, no smell.
Physical and chemical properties: melting point: 191 ℃, melting property: the water solubility is 0.1 PPM (25 ℃). Slightly soluble in acetone and benzene, soluble in xylene and dichlorobenzene.
Use: used for pesticide, dye intermediates.