Furfural is also called furaldehyde,its molecular formule C_５H_４O_２and its molecular weight 98.08[according to lntl Relative Atomic Weight(1987)].

　　Furfural is a light yellow to amber transparent oily liquid with an irritative smell if semen arminiacae amarae,becomes brown and resinified under action of air and light and can dissolve in many organic solvents,such as ethyl alcohol,alcohol,　acetone,diethyl ether,benzene,and carbon terachloride.

　lndustrial furfural has many uses:Mainly used as selective solvent or raw material to manufacture other chemicals,such as furfuryl alcohlol,2-methyfuran,oxolane,furan resin and widely used in foodstuff,medicine and dye industries.