4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione
3,6-difluorophthalic anhydride
CAS: 652-40-4
Molecular Formula: C8H2F2O3
4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione - Names and Identifiers
| Name | 3,6-difluorophthalic anhydride |
| Synonyms | 3,6-DIFLUOROPHTHALIC ANHYDRIDE 3,6-difluorophthalic anhydride 4,7-Difluoro-1,3-isobenzofurandione 5,8-Difluoro-1,3-Isobenzofurandione 4,7-difluoroisobenzofuran-1,3-dione 4,7-difluoro-2-benzofuran-1,3-dione 1,3-Isobenzofurandione, 4,7-difluoro- 4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione 1,1'-(1,1,1,3,3,3-hexafluoropropane-2,2-diyl)bis(3,4-dimethylbenzene) |
| CAS | 652-40-4 |
| EINECS | 620-755-5 |
| InChI | InChI=1/C8H2F2O3/c9-3-1-2-4(10)6-5(3)7(11)13-8(6)12/h1-2H |
4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione - Physico-chemical Properties
| Molecular Formula | C8H2F2O3 |
| Molar Mass | 184.1 |
| Density | 1.658 |
| Melting Point | 218-221 °C (lit.) |
| Boling Point | 315.7±32.0 °C(Predicted) |
| Flash Point | 140.1°C |
| Solubility | Acetonitrile, DMSO |
| Vapor Presure | 0.000429mmHg at 25°C |
| Appearance | Solid |
| Color | White |
| Storage Condition | Hygroscopic, Refrigerator, Under inert atmosphere |
| Stability | moisture sensitive |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.555 |
4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| HS Code | 29173990 |
| Hazard Note | Irritant |
4,7-difluoro-1,3-dihydro-2-benzofuran-1,3-dione - Introduction
3,6-difluorophthalic anhydride is an organic compound with the chemical formula C8H2F2O3. The following is a description of the properties, uses, preparation and safety information of the compound:
Nature:
-Appearance: Colorless to light yellow solid.
-Melting point: 115-120 ℃.
-Boiling point: 329 ℃ (decomposition).
-Density: 1.58g/cm³.
-Solubility: Slightly soluble in water, soluble in alcohol and ketone solvents.
Use:
- 3,6-difluorophthalic anhydride are often used as reagents or intermediates in organic synthesis.
-It can be used as and modified thermally conductive materials, such as polyimide.
-In the dye industry, it can also be used as a dye synthesis reagent.
Preparation Method:
The main preparation method of -3,6-difluorophthalic anhydride is through the reaction of 3,6-difluorobenzoquinone and anhydrous acid.
-The reaction can be carried out at room temperature or under heating.
Safety Information:
- 3,6-difluorophthalic anhydride should avoid contact with skin and eyes during use and storage.
-In case of contact, rinse immediately with plenty of water.
-It is an organic compound and should be operated in a well-ventilated place and away from open flames.
-When in use, wear appropriate personal protective equipment, such as gloves and goggles.
-During storage, it should be stored in a cool, dry and sealed container, avoiding contact with air, moisture and moisture.
-Avoid contact with strong oxidants and strong acids to avoid dangerous reactions.
Nature:
-Appearance: Colorless to light yellow solid.
-Melting point: 115-120 ℃.
-Boiling point: 329 ℃ (decomposition).
-Density: 1.58g/cm³.
-Solubility: Slightly soluble in water, soluble in alcohol and ketone solvents.
Use:
- 3,6-difluorophthalic anhydride are often used as reagents or intermediates in organic synthesis.
-It can be used as and modified thermally conductive materials, such as polyimide.
-In the dye industry, it can also be used as a dye synthesis reagent.
Preparation Method:
The main preparation method of -3,6-difluorophthalic anhydride is through the reaction of 3,6-difluorobenzoquinone and anhydrous acid.
-The reaction can be carried out at room temperature or under heating.
Safety Information:
- 3,6-difluorophthalic anhydride should avoid contact with skin and eyes during use and storage.
-In case of contact, rinse immediately with plenty of water.
-It is an organic compound and should be operated in a well-ventilated place and away from open flames.
-When in use, wear appropriate personal protective equipment, such as gloves and goggles.
-During storage, it should be stored in a cool, dry and sealed container, avoiding contact with air, moisture and moisture.
-Avoid contact with strong oxidants and strong acids to avoid dangerous reactions.
Last Update：2024-04-10 22:29:15
