Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution
Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution (CAS 31942-21-9), 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.
- Synonyms
- 4′-benzophenonetetracarboxylic dianhydride-co-44′-oxydianiline/13-phenylenediamine)amic acid solution31942-21-9

| Boiling point | 159 °C(lit.) |
|---|---|
| Density | 1.06 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.517(lit.) |
| Concentration | 19 wt. %±1 wt. % (1-methyl-2-pyrrolidinone/aromatic hydrocarbon (80:20)) |
| Storage temperature | −20°C |
| Impurities tested | ≤10 ppm total metals |
| Application | Semi-conductor material. Dielectric component in thin films, high density interconnect systems and multichip modules. |
| Transport (UN / ADR) | UN 1866 3/PG 3 |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Anion traces | chloride (Cl-): ≤5 ppm |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Transition Temp | Tg >320 °C (imide) |
|---|---|
| Purified By | filtration through 0.2μm medium |
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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution?
+
Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution (CAS 31942-21-9), 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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution 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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution?
+
Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution has CAS number 31942-21-9 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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution?
+
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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution 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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution be stored?
+
Store Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution 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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution used for?
+
Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution 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 Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine), amic acid solution?
+
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



