Product Details
- Product Name3,3',4,4'-Benzophenonetetracarboxylic dianhydride
- CAS No.2421-28-5
- EINECS No.219-348-1
- MFC17H6O7
- MW322.23
- InChIKeyVQVIHDPBMFABCQ-UHFFFAOYSA-N
- AppearanceNeedles or Crystalline PowderOff-white to brown
- Boiling point 320°C 5mm
- density 1,57 g/cm3
- Water Solubility REACTS
- Melting point 218-222 °C (lit.)
- storage temp. Inert atmosphere,Room Temperature
| 3,3',4,4'-Benzophenonetetracarboxylic dianhydride Basic information |
| Product Name: |
3,3',4,4'-Benzophenonetetracarboxylic dianhydride |
| Synonyms: |
1,3-Isobenzofurandione, 5,5'-carbonylbis-;3,3',4,4'-Benzophenonetetracarboxylic acid dianhydride;3,3',4,4'-Tetracarboxybenzophenone dianhydride;3,3’,4,4’-benzophenonetetracarboxylicaciddianhydride;3-Isobenzofurandione,5,5’-carbonylbis-1;4,4'-Carbonylbis[phthalic anhydride];4,4'-Diphthalic anhydride ketone;5,5’-carbonylbis-3-isobenzofurandione |
| CAS: |
2421-28-5 |
| MF: |
C17H6O7 |
| MW: |
322.23 |
| EINECS: |
219-348-1 |
| Product Categories: |
pharmacetical;Aromatic Tetracarboxylic Dianhydrides (for High-Performance Polymer Research);Benzophenones (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, pharmaceutical intermediates;fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, functional materials |
| Mol File: |
2421-28-5.mol |
 |
| |
| 3,3',4,4'-Benzophenonetetracarboxylic dianhydride Chemical Properties |
| Melting point |
218-222 °C(lit.) |
| Boiling point |
320°C 5mm |
| density |
1,57 g/cm3 |
| vapor density |
1.4 (vs air) |
| vapor pressure |
<0.1 mm Hg ( 0 °C) |
| refractive index |
1.6380 (estimate) |
| Fp |
324 °C |
| solubility |
DMF: 0.1 g/mL, clear |
| form |
Needles or Crystalline Powder |
| color |
Off-white to brown |
| explosive limit |
16% |
| Water Solubility |
REACTS |
| Sensitive |
Moisture Sensitive |
| λmax |
580nm(CH3CN)(lit.) |
| Sublimation |
220-230 ºC |
| BRN |
761777 |
| NIST Chemistry Reference |
Bis-(3-phthalyl anhydride) ketone(2421-28-5) |
| EPA Substance Registry System |
1,3-Isobenzofurandione, 5,5'-carbonylbis-(2421-28-5) |
| Hazard Codes |
Xi |
| Risk Statements |
36/37 |
| Safety Statements |
25 |
| WGK Germany |
1 |
| F |
21 |
| TSCA |
Yes |
| HS Code |
29183000 |
| |
| 3,3',4,4'-Benzophenonetetracarboxylic dianhydride Usage And Synthesis |
| Chemical Properties |
white crystall powder |
| Uses |
BTDA is important monomer of polyimide, and used for production of polyimide material. The material has high temperature resistance, low temperature resistance, corrosion resistance, radiation resistance, insulation, shock resistance, excellent performance. Can be made into structure parts, laminates, films, adhesives, coatings, insulation materials and reinforcing material, etc., can be widely used in the field of aerospace, electrical / electronics, shipbuilding, automobile, precision machinery. |
| Uses |
Used in the synthesis of polyimides. |
| Purification Methods |
The main impurity is the free acid formed by hydrolysis (check for OH bands in the IR). This can be converted to the dianhydride by treating with Ac2O (molar ratio of 4 to 1 of acid), heating at 110-120o for 1.5 to 2hours, cooling to 0—5o and collecting the dianhydride. This is then dissolved in hot dioxane or Me2CO, filtered and cooled to 10—15o. The moisture sensitive solid is collected and dried at 120—130o in vacuo. It has been sublimed at high vacuum. [Faberov et al. J Org Chem USSR 4 153 (English translation) 1968.] |
Company Profile
Introduction
Established in 2014,Career Henan Chemical Co. is a manufacturerspecializing in the sale of fine chemicals.
Mainly deals in the sales of:
Pharmaceutical intermediates
OLED intermediates：
Pharmaceutical intermediates;
OLED intermediates;
