DFBI
2,6-Difluorobenzoyl isocyanate
CAS: 60731-73-9
Molecular Formula: C8H3F2NO2
DFBI - Names and Identifiers
| Name | 2,6-Difluorobenzoyl isocyanate |
| Synonyms | DFBI 2,6-DIFLUOROBENZOYL ISOCYANATE 2,6-Difluorobenzoyl isocyanate benzoyl isocyanate, 2,6-difluoro- Benzoyl isocyanate, 2,6-difluoro- 1,3-difluoro-2-(isocyanatoMethyl)benzene |
| CAS | 60731-73-9 |
| InChI | InChI=1/C8H3F2NO2/c9-5-2-1-3-6(10)7(5)8(13)11-4-12/h1-3H |
DFBI - Physico-chemical Properties
| Molecular Formula | C8H3F2NO2 |
| Molar Mass | 183.11 |
| Density | 1.4723 (estimate) |
| Melting Point | 140-143.3 °C |
| Boling Point | 66 °C (0.2 mmHg) |
| Flash Point | 81.5°C |
| Vapor Presure | 0.137mmHg at 25°C |
| Appearance | Crystalline Solid |
| Color | White |
| Storage Condition | Freezer (-20°C) |
| Refractive Index | 1.511 |
| Physical and Chemical Properties | This product is oily liquid, water decomposition, soluble in toluene, xylene and other solvents. |
DFBI - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| HS Code | 29291000 |
DFBI - Reference Information
| Uses | 2, 6-difluorobenzoyl isocyanate is an important intermediate in the synthesis of benzoylurea insecticides and can be used to synthesize almost all benzoylurea insecticides, such as flufbolluron, pyridine, flufenicuron, flufenicuron, pyridicuron, flufenicuron, lice urea, flufenbenzuron, flufenuron, etc. |
| Production method | The preparation method is that 2,6-difluorobenzamide reacts with oxalyl chloride to obtain the corresponding isocyanate. Add 2, 6-difluorobenzamide and solvent into the enamel reaction kettle, add oxalyl chloride dropwise under stirring, when the quantitative oxalyl chloride dropwise addition is completed, the temperature is raised to remove the solvent, and 2, 6-difluorobenzoyl isocyanate is obtained. |
Last Update：2024-04-09 02:00:05
