Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (CAS 2421-28-5), molecular formula 4, is a high-purity chemical supplied by Tech Serve Solutions for polymer science applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 4,4′-Carbonyldiphthalic anhydride
- Synonyms
- 4′-tetracarboxylic dianhydride2421-28-5
| 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
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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?
+
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (CAS 2421-28-5), molecular formula 4, is a high-purity chemical supplied by Tech Serve Solutions for polymer science applications, to USP, BP and EP standards.
What grades of Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride?
+
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride has CAS number 2421-28-5 and molecular formula 4. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride?
+
Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
+
Yes. Every batch of Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride be stored?
+
Store Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride used for?
+
Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride is used in polymer science applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride?
+
Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
▶ Related products
(2,3-Epoxypropyl)benzene
Polymer Science
(2-Boc-amino)ethyl methacrylate
C11H19NO4
Polymer Science
(3,5,5-Trimethylcyclohex-2-enylidene)malononitrile
Polymer Science
(3-Acrylamidopropyl)trimethylammonium chloride solution
Polymer Science
1,1,1-Trifluoro-2-(trifluoromethyl)-2-hydroxy-4-methyl-5-pentyl methacrylate
Polymer Science
1,1,1-Tris(4-hydroxyphenyl)ethane
Polymer Science
1,1-Cyclohexanediacetic acid
Polymer Science
1,12-Diisocyanatododecane
Polymer Science
