Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride
99%, powder
Reagent
Code: #149711
Alias
3,3'4,4'-benzophenone tetracarboxylic dianhydride; 3,3',4,4'-benzophenone tetracarboxylic dianhydride, 5,5'-carbonylbis-1,3-isobenzofurandione
CAS Number
2421-28-5
blur_circular Chemical Specifications
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Molecular Information
Weight
322.23 g/mol
Formula
C₁₇H₆O₇
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Registry Numbers
EC Number
219-348-1
MDL Number
MFCD00005923
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Physical Properties
Melting Point
218-222 °C(lit.)
Boiling Point
320°C 5mm
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Storage & Handling
Density
1.57 g/cm3
Storage
Room temperature
description Product Description
Used primarily in the synthesis of high-performance polyimides, this compound contributes to the production of heat-resistant polymers applied in aerospace, microelectronics, and flexible circuits. Its structure enables strong thermal and oxidative stability, making it suitable for insulating materials and advanced composites. It is also employed in the development of gas separation membranes due to its rigid, aromatic framework that enhances selectivity and permeability control.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Appearance | White to Yellow to Orange to Green powder |
| Purity (%) | 98.5-100% |
| Infrared Spectrum | Conforms to Structure |
| NMR | Conforms to Structure |
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