5,5-difluoro-1-phenylcyclohexa-1,3-diene
3,3'-difluorobiphenyl
CAS: 396-64-5
Molecular Formula: C12H8F2
5,5-difluoro-1-phenylcyclohexa-1,3-diene - Names and Identifiers
| Name | 3,3'-difluorobiphenyl |
| Synonyms | 3,3-Difluorodiphenyl 3,3'-difluorobiphenyl 3,3'-difluorodiphenyl 3,3'-DIFLUOROBIPHENYL 3,3'-Difluoro-1,1'-biphenyl 5,5-difluoro-1-phenylcyclohexa-1,3-diene |
| CAS | 396-64-5 |
| EINECS | 206-905-9 |
| InChI | InChI=1/C12H8F2/c13-11-5-1-3-9(7-11)10-4-2-6-12(14)8-10/h1-8H |
5,5-difluoro-1-phenylcyclohexa-1,3-diene - Physico-chemical Properties
| Molecular Formula | C12H8F2 |
| Molar Mass | 190.19 |
| Density | 1,21 g/cm3 |
| Melting Point | 7-8°C |
| Boling Point | 130 °C |
| Flash Point | 130°C/14mm |
| Solubility | Difficult to mix. |
| Vapor Presure | 0.018mmHg at 25°C |
| Specific Gravity | 1.21 |
| BRN | 2046445 |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.568 |
| MDL | MFCD00039216 |
5,5-difluoro-1-phenylcyclohexa-1,3-diene - 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. S36 - Wear suitable protective clothing. |
| UN IDs | 3151 |
| Hazard Note | Irritant |
| Hazard Class | 9 |
| Packing Group | II |
5,5-difluoro-1-phenylcyclohexa-1,3-diene - Introduction
3,3 '-difluorobiphenyl is an organic compound with the chemical formula C12H8F2. It consists of two benzene rings connected by a difluoro atom. The following is a description of the nature, use, preparation and safety information of 3,3 '-difluorobiphenyl:
Nature:
-Appearance: colorless or light yellow liquid
-Boiling point: about 230 degrees Celsius
-Density: about 1.225 g/ml
-Solubility: Soluble in organic solvents such as ethanol, acetone and ether, insoluble in water
-Stability: stable at room temperature, but may decompose when heated
Use:
- 3,3 '-difluorobiphenyl is often used as starting material and intermediate in organic synthesis
-It is widely used in the pharmaceutical, pesticide and dye industries
-As one of the components of liquid crystal materials, used in display technology and optical fields
Preparation Method:
- 3,3 '-difluorobiphenyl can be obtained by the reaction of phenylacetylene and fluorine gas. First, phenylacetylene is hydrogenated under the action of a copper chloride catalyst to obtain semi-hydrogenated phenylacetylene. Then, the semihydrogenated phenylacetylene is reacted with fluorine gas to obtain 3,3 ′-difluorobiphenyl.
Safety Information:
- 3,3 '-difluorobiphenyl has low toxicity, but it is still necessary to pay attention to safe operation.
-Avoid direct contact with skin, eyes and respiratory tract.
-Wear appropriate personal protective equipment such as goggles, gloves and protective masks when used.
-Operate in a well-ventilated place to avoid inhaling its vapors.
-Store away from ignition and oxidizing agents.
Nature:
-Appearance: colorless or light yellow liquid
-Boiling point: about 230 degrees Celsius
-Density: about 1.225 g/ml
-Solubility: Soluble in organic solvents such as ethanol, acetone and ether, insoluble in water
-Stability: stable at room temperature, but may decompose when heated
Use:
- 3,3 '-difluorobiphenyl is often used as starting material and intermediate in organic synthesis
-It is widely used in the pharmaceutical, pesticide and dye industries
-As one of the components of liquid crystal materials, used in display technology and optical fields
Preparation Method:
- 3,3 '-difluorobiphenyl can be obtained by the reaction of phenylacetylene and fluorine gas. First, phenylacetylene is hydrogenated under the action of a copper chloride catalyst to obtain semi-hydrogenated phenylacetylene. Then, the semihydrogenated phenylacetylene is reacted with fluorine gas to obtain 3,3 ′-difluorobiphenyl.
Safety Information:
- 3,3 '-difluorobiphenyl has low toxicity, but it is still necessary to pay attention to safe operation.
-Avoid direct contact with skin, eyes and respiratory tract.
-Wear appropriate personal protective equipment such as goggles, gloves and protective masks when used.
-Operate in a well-ventilated place to avoid inhaling its vapors.
-Store away from ignition and oxidizing agents.
Last Update：2024-04-10 22:29:15
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CAS: 396-64-5
Tel: 18301782025
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Mobile: 18021002903
QQ: 3008007409
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