Molecular Formula | C6H2Cl2FNO2 |
Molar Mass | 209.99 |
Density | 1.6207 (estimate) |
Melting Point | 152-155 °C (lit.) |
Boling Point | 247°C (rough estimate) |
Flash Point | 102.1°C |
Vapor Presure | 0.029mmHg at 25°C |
Appearance | Crystalline powder |
Color | White to Yellow to Orange |
BRN | 4311035 |
pKa | 1.38±0.32(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | 1.531 |
MDL | MFCD00799517 |
Use | Used as a pharmaceutical Intermediate |
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. S37/39 - Wear suitable gloves and eye/face protection |
WGK Germany | 1 |
HS Code | 29333990 |
Hazard Class | IRRITANT |
Application | 2, 6-dichloro-5-fluoronicotinic acid, 6-dichloro-5-fluoro-3-carboxylic acid pyridine, is an important intermediate for the synthesis of the third generation of quinolone drugs, is the preparation of fluorine-containing naphthyridine ring antibacterial drugs (such, cyprofluroxic acid, picrofluoridic acid, polyfluoridic acid) intermediates, these drugs are currently less than the application of ciprofloxacin in China. |
preparation | 2, 6-dichloro-5-fluoro-3-cyano pyridine, A certain proportion of ammonium sulfate is put into the reaction system, the reaction is for a certain time, cooling, adding a hydrolysis accelerator, heating up, reacting for a period of time, and after post-treatment, a beige to light brown sand product can be obtained, that is, 2,6-two chlorine 5 A fluorine nicotinic acid. |
synthesis procedure | synthesis procedure 1. The synthesis reaction equation of ethyl fluoroacetate is: the synthesis reaction equation of 2, 6-dihydroxy-5-fluoro-3-cyanopyridine is: 2, the reaction equation for the synthesis of 6-dichloro-5-fluoro-3-cyanopyridine is: 2, the reaction equation for the synthesis of 6-dichloro-5-fluoronicotinic acid is |
Use | for pharmaceutical intermediates |