Description

3,3′-Oxydiphthalic anhydride (CAS No. 50662-96-9) is a high-purity aromatic anhydride compound with the molecular formula C₁₆H₆O₇. This versatile chemical is widely used as a key monomer in the synthesis of advanced polyimides, polyamides, and other high-performance polymers. The IUPAC name for this compound is 4-[(1,3-dioxo-2-benzofuran-4-yl)oxy]-2-benzofuran-1,3-dione, and it is characterized by its anhydride functional groups which make it highly reactive in polymerization reactions.

Our product is manufactured under strict quality control measures to ensure exceptional purity (>98%) and consistency, making it ideal for research and industrial applications. The compound appears as a white to off-white crystalline powder with excellent thermal stability, making it suitable for high-temperature applications. It is soluble in polar aprotic solvents such as NMP, DMF, and DMSO, but has limited solubility in water.

This product is particularly valuable for materials scientists working on: high-temperature adhesives, advanced composite materials, flexible printed circuit boards, and coatings for aerospace applications. Proper handling requires protection against moisture exposure to prevent hydrolysis of the anhydride groups.

Properties

• CAS Number: 50662-96-9
• Complexity: 533
• IUPAC Name: 4-(1,3-dioxoisobenzofuran-4-yl)oxyisobenzofuran-1,3-dione
• InChI: InChI=1S/C16H6O7/c17-13-7-3-1-5-9(11(7)15(19)22-13)21-10-6-2-4-8-12(10)16(20)23-14(8)18/h1-6H
• InChI Key: BCJIMAHNJOIWKQ-UHFFFAOYSA-N
• Exact Mass: 310.01135253
• Molecular Formula: C16H6O7
• Molecular Weight: 310.21
• SMILES: C1=CC2=C(C(=C1)OC3=CC=CC4=C3C(=O)OC4=O)C(=O)OC2=O
• Topological: 96
• Monoisotopic Mass: 310.01135253
• Synonyms: 50662-96-9, 3,3′-oxydiphthalic anhydride, 4,4′-Oxybis(isobenzofuran-1,3-dione), oxydiphthalic anhydride, SCHEMBL261809, 3,3a(2)-Oxydiphthalic anhydride, DTXSID401308900, CS-0110990

Application

3,3′-Oxydiphthalic anhydride serves as a crucial monomer in the production of high-performance polyimide resins, which are extensively used in the electronics industry for flexible printed circuit boards and semiconductor packaging. The compound’s excellent thermal stability makes it valuable for creating heat-resistant coatings and adhesives in aerospace applications. Researchers also utilize this anhydride in developing advanced polymer membranes for gas separation and fuel cell technologies.

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