Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (CAS 2421-28-5) is a key organic compound with the molecular formula C17H6O7 and a molecular weight of 322.23 g/mol. Exhibiting high purity (assay 96%), it is purified by sublimation. This dianhydride is primarily utilized as a building block in materials science and polymer chemistry, particularly for the synthesis of advanced polymers and as a reagent in polymerization processes.
- IUPAC
- 4,4′-Carbonyldiphthalic anhydride
- Synonyms
- 4′-tetracarboxylic dianhydride4,4′-Carbonyldiphthalic anhydride
Polymer Synthesis
Serves as a crucial monomer for creating high-performance polymers such as polyimides and polyesters, imparting enhanced thermal and mechanical properties. Its rigid structure contributes to polymers with excellent stability.
Materials Science Research
Employed in the development of novel materials, including advanced coatings, films, and composites, due to its reactive anhydride groups. It enables the synthesis of polymers with specific functional characteristics.
Organic Photoinitiators
While primarily known for polymer applications, related benzophenone structures can function as photoinitiators in UV-curing processes. Further research would be needed to confirm specific efficacy for this compound.
| Molecular weight | 322.23 |
|---|---|
| Empirical formula | C17H6O7 |
| Assay | 96% |
| Vapour pressure | <0.1 mmHg (0 °C) |
| Vapour density | 1.4 (vs air) |
| Autoignition temp | 975 °F |
| Melting point | 218-222 °C(lit.) |
Hazard statements
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37 |
| Safety statements (S) | 25 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 16 % |
|---|---|
| Purified By | sublimation |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride used for?
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Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride is mainly used as a monomer in polymer synthesis, particularly for polyimides and polyesters, and in materials science research for developing advanced materials.
What are the CAS number and chemical formula for Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride?
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The CAS number is 2421-28-5 and the empirical formula (Hill Notation) is C17H6O7.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride with an assay of 96%, purified by sublimation. This product is supplied as a technical/research grade chemical and TSS does not represent it as USP, BP, or EP grade.
How should Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride be handled?
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This compound may cause eye irritation (H319) and respiratory irritation (H335). It is advised to wear eyeshields, gloves, and a dust mask type N95 (US). Avoid breathing dust. Use only in a well-ventilated area. Ensure proper disposal according to local regulations.
Is Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride typically shipped internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride.
How can I request a quote or sample?
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To request a quote or a sample of Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride, please contact our sales team via the website or provide your details through the product enquiry form.
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