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PA Phthalic Anhydride
CAS No. 85-44-9 Purity：≥99.5% Molecular Formula：C8H4O3 Phthalic anhydride can be used in the producing of plasticizer, alkyd resin, unsaturated polyester resin, dyes and pigments, insulating paints, fibreglass reinforced plastics and so on.
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