Para-Benzoquinone Chemical name: 1,4-Benzoquinone, p-Benzoquinone Synonyms name: 2,5-Cyclohexadiene-1,4-dione, Quinone CAS NO.：106-51-4 Structural formula: Molecular formual: C6H4O2 Molecular weight: 108.1 Technical conditions:  Appearance:Yellow crystal  Content: ≥99.0%  Melting point: 112.0-116.0℃  Moisture: ≤0.5%  Residue after ignition: ≤0.05% Usage:　 An excellent polymerization inhibitor particularly for vinylacetate monomer and unsaturated poyester. Also, can be used as pharmaceutical inertmediate. Packing: In 25kg/drum cardboard drum lined with double plastic bags.