ChemicalBook > CAS DataBase List > 6FCDA
6FCDA
- Product Name
- 6FCDA
- CAS No.
- 139162-14-4
- Chemical Name
- 6FCDA
- Synonyms
- 6FCDA;9,9-bis(trifluoromethyl)-2,3,6,7-xanthenetetracarboxylic dianhydride;9,9-Bist(rifluoromethyl)xanthenetetracarbo xylic dianhydride (6F-ODA);6FCDA9,9-bis(trifluoromethyl)-2,3,6,7-xant henetetracarboxylic dianhydride;9,9-bis(trifluoromethyl)-2,3,6,7-xanthenetetracarboxylic dianhydride (6FCDA);11,11-Bis(trifluoromethyl)-1H-difuro[3,4-b:3',4'-i]xanthene-1,3,7,9(11H)-tetraone;1H-Difuro[3,4-b:3',4'-i]xanthene-1,3,7,9(11H)-tetrone, 11,11-bis(trifluoromethyl)-
- CBNumber
- CB55833062
- Molecular Formula
- C19H4F6O7
- Formula Weight
- 458.22
- MOL File
- 139162-14-4.mol
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6FCDA Property
- Boiling point:
- 598.6±50.0 °C(Predicted)
- Density
- 1.848±0.06 g/cm3(Predicted)
- storage temp.
- Storage temp. 2-8°C
- Appearance
- White to off-white Solid
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6FCDA Chemical Properties,Usage,Production
Preparation
The preparation of 6FCDA is as follows:Add 154g of 9,9-bis(trifluoromethyl)-2,3,6,7-xanthene tetracarboxylic acid (0.31mol) obtained in step into a 1L three-necked flask, and then add 539g of acetic anhydride ( 5.28mol), the temperature was raised to 105±2°C and the reaction was stirred for 5-6h. After the reaction was completed, the temperature was lowered to 25±2°C, filtered, the filter cake was rinsed with 300 g of toluene, and vacuum dried at 80°C for 15 hours to obtain a white powdery solid 131 g of 9,9-bis(trifluoromethyl)-2,3,6,7-oxanthene tetracarboxyl dianhydride, purity (HPLC) was 99.6%, and yield was 91.8%.
6FCDA Preparation Products And Raw materials
Raw materials
Preparation Products
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