Our Divinylbenzene and m-diethylbenzene are from diethylbenzene Which are sudsidiary product from producing styrene,treated in physicochemical way like rectification and separatography. These two products are important special fine petrochemicals .Divinylbenzene is mainly used as desorbent in separatography of xylol ,And m-diethylbenzene is raw material for both producing divinylbenzene with high ratio of meta-position to para-position and producing various fine chemical.