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Description
Tetrahydro[3,3'-bifuran]-2,2',5,5'-tetrone (CAS 4534-73-0) is the cyclic dianhydride of butane-1,2,3,4-tetracarboxylic acid, carrying four carbonyl groups across two anhydride rings. Its high reactivity toward amines and hydroxyl groups makes it a valuable monomer for polyimides and polyester-imides, a curing agent for epoxy resins, and a crosslinker for cellulose fibres and material surfaces. TCI product B6346 is supplied in 5 g and 25 g packs to suit both exploratory formulation work and routine polymer research. Anhydrides hydrolyse readily, so weigh the solid quickly under dry conditions, store it tightly sealed with desiccant, and follow the manufacturer's Safety Data Sheet.
![Tetrahydro[3,3'-bifuran]-2,2',5,5'-tetrone (CAS 4534-73-0) - TCI B6346 - AMI Scientific](http://amiscientific.com/cdn/shop/files/TCI2510B6346.jpg?v=1768193651&width=1946)
![Tetrahydro[3,3'-bifuran]-2,2',5,5'-tetrone (CAS 4534-73-0) - TCI B6346 - AMI Scientific](http://amiscientific.com/cdn/shop/files/TCI2510B6346.jpg?v=1768193651&width=1445)
