Property | Value |
Molecular Formula | C₁₆H₆O₆ |
Molecular Weight | 294.22 g/mol |
Appearance | White to off-white powder |
Boiling Point | Not available |
Melting Point | Not available |
Density | Not available |
Description of 4-(1,3-dioxo-2-benzofuran-4-yl)-2-benzofuran-1,3-dione
4-(1,3-Dioxo-2-benzofuran-4-yl)-2-benzofuran-1,3-dione, commonly known as i-BPDA or [4,4'-Biisobenzofuran]-1,1',3,3'-tetrone (CAS: 3711-04-4), is a high-purity aromatic dianhydride. Primarily used as a monomer in synthesizing high-performance polyimides, i-BPDA enables the production of materials with superior heat resistance, mechanical strength, and chemical durability.
Application of 4-(1,3-dioxo-2-benzofuran-4-yl)-2-benzofuran-1,3-dione
4-(1,3-Dioxo-2-benzofuran-4-yl)-2-benzofuran-1,3-dione (CAS: 3711-04-4), commonly known as i-BPDA, is a vital aromatic dianhydride monomer for synthesizing high-performance polyimides and modified copolymers like polyetherimides. Its key applications include producing advanced polyimide resins for high-pressure gas purification membranes, delivering superior separation efficiency, product purity, and operational simplicity in industrial gas processing. In electronics and aerospace, it enables heat-resistant insulating films and components; in automotive and medical fields, it supports durable housings with enhanced mechanical strength and processability for injection molding and extrusion.
Storage of 4-(1,3-dioxo-2-benzofuran-4-yl)-2-benzofuran-1,3-dione
It should be kept in a cool, dry, well-ventilated area at room temperature. Keep containers tightly sealed to prevent moisture absorption and hydrolysis, ensuring stability for use in polyimide synthesis. Avoid incompatibles like strong bases, oxidizers, and direct sunlight; handle under inert atmosphere when possible.
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