4,4'-Biphthalic anhydride

CAS: 2420-87-3

Ref. 3D-FB62603

Product Information

• Name: 4,4'-Biphthalic anhydride
• Synonyms: Diphenyl-3,3',4,4'-tetracarboxylic Dianhydride
• Brand: Biosynth
• Description: 4,4'-Biphthalic anhydride is a dianhydride that can be reacted with amines to form amides. It is a colorless, water-soluble solid that has been used in the production of polyimides and other polymers. 4,4'-Biphthalic anhydride reacts with hydrochloric acid to form a molecule of water vapor and the corresponding salt. This compound also reacts with hydroxyl groups to produce carbonyl groups. 4,4'-Biphthalic anhydride has a thermal expansion coefficient of 7 x 10^-5 K^-1, which is greater than that of most organic compounds. This high expansion coefficient means that it can be used in applications where low thermal expansion coefficients are needed.

Chemical properties

• Molecular weight: 294.22 g/mol
• Formula: C₁₆H₆O₆
• Purity: Min. 95%
• InChI: InChI=1S/C16H6O6/c17-13-9-3-1-7(5-11(9)15(19)21-13)8-2-4-10-12(6-8)16(20)22-14(10)18/h1-6H
• InChI key: InChIKey=WKDNYTOXBCRNPV-UHFFFAOYSA-N
• SMILES: O=C1OC(=O)c2cc(-c3ccc4c(c3)C(=O)OC4=O)ccc21