2,3 DIBROMO-5-CHLORO PYRIDINE - Names and Identifiers
2,3 DIBROMO-5-CHLORO PYRIDINE - Physico-chemical Properties
Molecular Formula | C5H2Br2ClN
|
Molar Mass | 271.34 |
Density | 2.136±0.06 g/cm3(Predicted) |
Melting Point | 41.0 to 45.0 °C |
Boling Point | 259.9±35.0 °C(Predicted) |
Flash Point | 111.004°C |
Vapor Presure | 0.02mmHg at 25°C |
Appearance | Pale yellow crystal |
pKa | -3.85±0.20(Predicted) |
Storage Condition | Inert atmosphere,Room Temperature |
Refractive Index | 1.62 |
MDL | MFCD08687254 |
2,3 DIBROMO-5-CHLORO PYRIDINE - Risk and Safety
Risk Codes | R36/37/38 - Irritating to eyes, 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.
S37 - Wear suitable gloves.
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 |
Hazard Class | IRRITANT |
2,3 DIBROMO-5-CHLORO PYRIDINE - Introduction
2,3-Dibromo-5-chloropyridine is an organic compound with the chemical formula C≡H≡Br₂ ClN. The following is a description of the properties, uses, preparation and safety information of the compound:
Nature:
-Appearance: 2,3-Dibromo-5-chloropyridine is a colorless to yellow solid.
-Solubility: It has high solubility in organic solvents, but low solubility in water.
-Melting point: The melting point range of the compound is 70-75°C.
Use:
2,3-dibromo-5-chloropyridine has a wide range of applications in organic synthesis, mainly for the following:
-Used as an intermediate compound, can be used to prepare organic compounds such as medicines, pesticides and dyes.
-As a photosensitizer, it can be used in printing and photo production.
Preparation Method:
The preparation method of 2,3-dibromo-5-chloropyridine can be carried out by the following steps:
1. First, under appropriate conditions, 2,3-dibromopyridine and phosphorus pentachloride are reacted to generate 2,3-dibromo-5-chloropyridine pentachloride.
2. Then, pentachloride is reacted with sodium hydroxide or other alkaline solutions to obtain 2,3-dibromo-5-chloropyridine.
Safety Information:
The use and operation of-2,3-dibromo-5-chloropyridine should be carried out in a well-ventilated place to avoid prolonged exposure to its smell or dust.
-Wear appropriate protective equipment during operation, including chemical protective gloves, goggles and protective clothing.
-Avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water and seek medical help.
-2,3-dibromo-5-chloropyridine is an organic bromide, which has certain toxicity and irritation. It must be properly handled and stored to avoid contact with combustibles and high temperature.
-When using and disposing of this compound, please comply with the requirements of safe operation procedures and relevant laws and regulations.
Last Update:2024-04-09 21:01:54