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Diethylenetriaminepentaacetic dianhydride: BD1555423911-26-498%; ￥197.05g

Benzophenone-3,3',4,4'-tetracarboxylic dianhydride: BD811932421-28-596%; ￥566.0500g

Bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic dianhydride: BD1166691719-83-198%; ￥226.025g

1,2,4,5-Cyclohexanetetracarboxylic Dianhydride: BD1741452754-41-895%; ￥109.010g

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