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CAS 2421-28-5 — 3,3',4,4'-Benzophenonetetracarboxylic dianhydride

3,3',4,4'-Benzophenonetetracarboxylic dianhydride is a high-performance monomer used primarily in the synthesis of polyimides and specialty polymers for aerospace and electronics applications. This chemical has the CAS number 2421-28-5 and carries no signal word. Molekula supplies 3,3',4,4'-Benzophenonetetracarboxylic dianhydride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.