Methanone, (2-fluorophenyl)(4-fluorophenyl)-
2,4'-Difluorobenzophenone
CAS: 342-25-6
Molecular Formula: C13H8F2O
Methanone, (2-fluorophenyl)(4-fluorophenyl)- - Names and Identifiers
| Name | 2,4'-Difluorobenzophenone |
| Synonyms | 2,4'-Difluorobenzoph LABOTEST-BB LT00159745 2,4''-FLUOROBENZOPHENONE 2,4'-difluorobenophenone 2,4'-Difluorobenzophenone 2-Fluorophenyl(4-fluorophenyl) ketone (2-fluorophenyl)(4-fluorophenyl)methanone Methanone, (2-fluorophenyl)(4-fluorophenyl)- |
| CAS | 342-25-6 |
| EINECS | 206-441-7 |
| InChI | InChI=1/C11H9FN2OS/c12-8-3-1-7(2-4-8)9-6-16-11(14-9)5-10(13)15/h1-4,6H,5H2,(H2,13,15) |
Methanone, (2-fluorophenyl)(4-fluorophenyl)- - Physico-chemical Properties
| Molecular Formula | C13H8F2O |
| Molar Mass | 218.2 |
| Density | 1.244g/mLat 25°C(lit.) |
| Melting Point | 22-24°C(lit.) |
| Boling Point | 176-178°C16mm Hg(lit.) |
| Flash Point | >230°F |
| Solubility | Chloroform, Methanol |
| Vapor Presure | 4.55E-08mmHg at 25°C |
| Appearance | Solid |
| Specific Gravity | 1.244 |
| Color | Off-White Low-Melting |
| BRN | 3268520 |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.5689(lit.) |
| Physical and Chemical Properties | 2,4 '-difluorobenzophenone is an oily liquid, m. P. 22-24 °c, B. p.176 ~ 178 ℃/2.1 3kpa,n20D 1.5698, relative density 1.244, insoluble in water, soluble in benzene, xylene, ketone and other organic solvents. |
Methanone, (2-fluorophenyl)(4-fluorophenyl)- - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes 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 S24/25 - Avoid contact with skin and eyes. S37 - Wear suitable gloves. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29147000 |
| Hazard Class | IRRITANT |
Methanone, (2-fluorophenyl)(4-fluorophenyl)- - Reference Information
| freezing point | 22.0 to 28.0 ℃ |
| use | 2,4 '-difluorobenzone is an intermediate of the fungicide triazol (flutriafol). Used as an intermediate for the pesticide trioxazole |
| production method | its preparation method is to place fluorobenzene and anhydrous aluminum trichloride in a reaction kettle, add 2-fluorobenzoyl chloride dropwise at low temperature, stir at the same time, raise the temperature to reflux after dropwise addition, continue the reaction for 3 hours, cool to room temperature, add HCl dropwise, control pH = 3~4, delaminate, dry and distill the oil layer to obtain 2, 4-Difluorobenzophenone. |
Last Update：2024-04-09 19:05:09
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