2,3-Difuoro-5-chloropyridine
5-chloro-2,3-difluoropyridine
CAS: 89402-43-7
Molecular Formula: C5H2ClF2N
2,3-Difuoro-5-chloropyridine - Names and Identifiers
2,3-Difuoro-5-chloropyridine - Physico-chemical Properties
| Molecular Formula | C5H2ClF2N |
| Molar Mass | 149.53 |
| Density | 1.442 g/mL at 25 °C |
| Melting Point | 47-49 C |
| Boling Point | 135°C |
| Flash Point | 135°C |
| Solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) |
| Appearance | Oil |
| Color | Clear Colourless |
| BRN | 4177319 |
| pKa | -5.14±0.20(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.4738 |
2,3-Difuoro-5-chloropyridine - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R10 - Flammable 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 | S23 - Do not breathe vapour. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 2810 |
| WGK Germany | 3 |
| Hazard Note | Harmful |
| Hazard Class | 3 |
| Packing Group | III |
2,3-Difuoro-5-chloropyridine - Reference Information
| Introduction | 2, 3-difluoro-5-chloropyridine is an important intermediate for the synthesis of the highly effective pesticide norethynyl ester. In the past ten years, fluorine-containing pesticides have developed rapidly and become the focus of the development of the world pesticide industry. Among them, the development and application of fluorine-containing pyrethroids and fluorine-containing benzoylurea insecticides are more. |
Last Update：2024-04-10 22:29:15
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