4 4′-Biphthalic Anhydride (purified by sublimation) - Factory, Suppliers, Manufacturers from China

4 4′-Biphthalic Anhydride (purified by sublimation), , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

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3,3',4,4'-Biphenyltetracarboxylic dianhydride CAS 2420-87-3