Pyridine, 2,5-dichloro-3-methyl-
2,5-Dichloro-3-methylpyridine
CAS: 59782-88-6;59782-90-0
Molecular Formula: C6H5Cl2N
Pyridine, 2,5-dichloro-3-methyl- - Names and Identifiers
Pyridine, 2,5-dichloro-3-methyl- - Physico-chemical Properties
| Molecular Formula | C6H5Cl2N |
| Molar Mass | 162.02 |
| Density | 1.319 |
| Melting Point | 42-45℃ |
| Boling Point | 187℃ |
| Flash Point | 111℃ |
| Vapor Presure | 0.891mmHg at 25°C |
| pKa | -0.23±0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.547 |
Pyridine, 2,5-dichloro-3-methyl- - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R25 - Toxic if swallowed R36 - Irritating to the eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2811 6.1 / PGIII |
| WGK Germany | 3 |
| Hazard Class | IRRITANT |
Pyridine, 2,5-dichloro-3-methyl- - Reference Information
| production method | 11g(0.1mol) of dichloroacetonitrile and 14g(0.2mol) of methacrolein are added to 50ml of propiononitrile solvent, 200mg of cuprous chloride and 200mg of tri-n-butyl phosphorus are used as catalysts, placed in a Karnol tube, heated at 130 ℃ for 6h, and cooled to room temperature, the solvent and unreacted raw materials were removed in vacuum, and distilled under reduced pressure at 100-120 ℃/5mmHg to obtain light yellow liquid and slowly crystallize. 2, 3-dichloro-5-methylpyridine 108g was obtained by washing and drying with n-hexane with a yield of 40% mp. 42~45 ℃. |
Last Update：2024-04-09 21:11:58
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Multiple Specifications
Product Name: 2,5-Dichloro-3-Picoline Visit Supplier Webpage Request for quotationCAS: 59782-88-6
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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