English name Dibutyl oxalate
CAS RN 2050-60-4 
Molecular formula C₁₀H₁₈O₄ 
Molecular weight 202.2498

Physico-chemical properties
character colorless oily liquid, micro has the fragrant smell.
Melting point 29.6℃
Boiling point 245.5℃
Relative density 0.9873
Refractive index 1.4180
Solubility Dissolves in the ethyl alcohol, the ether. Does not dissolve in the water.
Usage Serves as the resolver, also uses in the organic synthesis.