Pyridine, 3,4,5-tribromo-
3,4,5-Tribromo-pyridine
CAS: 2457-48-9
Molecular Formula: C5H2Br3N
Pyridine, 3,4,5-tribromo- - Names and Identifiers
| Name | 3,4,5-Tribromo-pyridine |
| Synonyms | 3,4,5-TRIBROMOPYRIDINE 3,4,5-Tribromo-pyridine Pyridine, 3,4,5-tribromo- |
| CAS | 2457-48-9 |
| InChI | InChI=1/C5H2Br3N/c6-3-1-9-2-4(7)5(3)8/h1-2H |
Pyridine, 3,4,5-tribromo- - Physico-chemical Properties
| Molecular Formula | C5H2Br3N |
| Molar Mass | 315.79 |
| Density | 2.406±0.06 g/cm3 (20 ºC 760 Torr) |
| Melting Point | 105-109 °C |
| Boling Point | 284.0±35.0℃ (760 Torr) |
| Flash Point | 125.6±25.9℃ |
| Vapor Presure | 0.00523mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Almost white |
| pKa | 0.77±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.642 |
Pyridine, 3,4,5-tribromo- - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - 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. S39 - Wear eye / face protection. 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 |
Pyridine, 3,4,5-tribromo- - Introduction
3,4, 5-tribromo-pyridine is an organic compound with a pyridine ring containing three bromine atoms in the chemical structure. The following is a description of the nature, use, preparation and safety information of 3,4,5-Tribromo-pyridine:
Nature:
-Appearance: 3,4,5-Tribromo-pyridine is a colorless crystal or yellow powder.
-Melting point: Its melting point is in the range of 120-125°C.
-Boiling point: The boiling point of 3,4,5-Tribromo-pyridine is about 333 ° C.
-Solubility: Its solubility in water is low, but it has better solubility in organic solvents such as ethanol and dimethyl sulfoxide.
Use:
- 3,4,5-Tribromo-pyridine is often used as an intermediate in organic synthesis for the synthesis of other compounds. It can participate in organic synthesis reactions, such as hydrogenation, substitution reactions and coupling reactions.
-It can also be used as a raw material for the synthesis of certain polymer compounds, such as polymers, coatings and dyes.
Method:
-A method for preparing 3,4, 5-tribromo-pyridine is by reacting pyridine and bromine. The reaction may be carried out in the absence of a solvent or in an appropriate organic solvent.
-Another preparation method is to react 3-bromopyridine and 2-bromopyridine to obtain 3,4, 5-tribromo-pyridine.
Safety Information:
- 3,4,5-Tribromo-pyridine is an organic compound with certain toxicity. It should be used in compliance with relevant safe operating and laboratory specifications.
-When using 3,4,5-Tribromo-pyridine, avoid direct contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water. Seek medical help if necessary.
-When storing, 3,4,5-Tribromo-pyridine should be placed in a sealed container to avoid contact with moisture, high temperature and open flame.
-When disposing of waste, it is necessary to follow relevant regulations and take appropriate treatment measures to prevent pollution to the environment.
Nature:
-Appearance: 3,4,5-Tribromo-pyridine is a colorless crystal or yellow powder.
-Melting point: Its melting point is in the range of 120-125°C.
-Boiling point: The boiling point of 3,4,5-Tribromo-pyridine is about 333 ° C.
-Solubility: Its solubility in water is low, but it has better solubility in organic solvents such as ethanol and dimethyl sulfoxide.
Use:
- 3,4,5-Tribromo-pyridine is often used as an intermediate in organic synthesis for the synthesis of other compounds. It can participate in organic synthesis reactions, such as hydrogenation, substitution reactions and coupling reactions.
-It can also be used as a raw material for the synthesis of certain polymer compounds, such as polymers, coatings and dyes.
Method:
-A method for preparing 3,4, 5-tribromo-pyridine is by reacting pyridine and bromine. The reaction may be carried out in the absence of a solvent or in an appropriate organic solvent.
-Another preparation method is to react 3-bromopyridine and 2-bromopyridine to obtain 3,4, 5-tribromo-pyridine.
Safety Information:
- 3,4,5-Tribromo-pyridine is an organic compound with certain toxicity. It should be used in compliance with relevant safe operating and laboratory specifications.
-When using 3,4,5-Tribromo-pyridine, avoid direct contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water. Seek medical help if necessary.
-When storing, 3,4,5-Tribromo-pyridine should be placed in a sealed container to avoid contact with moisture, high temperature and open flame.
-When disposing of waste, it is necessary to follow relevant regulations and take appropriate treatment measures to prevent pollution to the environment.
Last Update：2024-04-09 15:17:56
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CAS: 2457-48-9
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