3-BROMO-2,5-DICHLOROPYRIDINE - Names and Identifiers
3-BROMO-2,5-DICHLOROPYRIDINE - Physico-chemical Properties
Molecular Formula | C5H2BrCl2N
|
Molar Mass | 226.89 |
Density | 1,199g/cm |
Melting Point | 38-40°C |
Boling Point | 195-198C |
Flash Point | 98.3°C |
Solubility | soluble in Methanol |
Vapor Presure | 0.0634mmHg at 25°C |
Appearance | White powder |
Color | Light orange to Yellow to Green |
pKa | -3.02±0.10(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
Refractive Index | 1,424-1,426 |
MDL | MFCD06659484 |
3-BROMO-2,5-DICHLOROPYRIDINE - Risk and Safety
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin.
R41 - Risk of serious damage to eyes
R37/38 - Irritating to respiratory system and skin.
R25 - Toxic if swallowed
|
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.)
S39 - Wear eye / face protection.
|
UN IDs | UN2811 |
Hazard Note | Irritant |
Hazard Class | 6.1 |
Packing Group | III |
3-BROMO-2,5-DICHLOROPYRIDINE - Introduction
2,5-Dichloro-3-bromopyridine is an organic compound with the formula C5H2BrCl2N.
Nature:
2,5-dichloro-3-bromopyridine is a colorless to pale yellow crystal with a special odor. It is a solid at room temperature and can be dissolved in alcohols, ethers and organic solvents. Its melting point is about 85-90°C.
Use:
2,5-dichloro-3-bromopyridine is often used as an intermediate in organic synthesis. It can be used as a raw material for the synthesis of drugs, dyes and pesticides, and can also be used in metal-catalyzed reactions and solid-phase synthesis. In addition, it can also be used in the preparation of organic photoelectric devices and liquid crystal displays.
Preparation Method:
The preparation of 2,5-dichloro-3-bromopyridine usually uses pyridine as a starting material and reacts in the presence of bromine, ferrous chloride and alcohol to produce the target product. Specific reaction conditions and processes can be adjusted according to actual needs.
Safety Information:
2,5-dichloro-3-bromopyridine is an irritating compound that has an irritating effect on human skin, eyes and respiratory tract. Wear suitable protective clothing and gloves on contact and take care to avoid inhalation of odors. In case of inadvertent contact, flush the affected area with plenty of water and seek medical attention. In addition, the compound should be stored in a dry, well-ventilated place, away from fire and oxidizing agents.
Last Update:2024-04-09 20:52:54