125257-38-7
2,3-dibromo-4-methylthiophene
CAS: 125257-38-7
Molecular Formula: C5H4Br2S
125257-38-7 - Names and Identifiers
| Name | 2,3-dibromo-4-methylthiophene |
| Synonyms | 2,3-dibromo-4-methylthiophene 2,3-DIBROMO-4-METHYLTHIOPHENE Thiophene, 2,3-dibromo-4-methyl- thiophene, 2,3-dibromo-4-methyl- |
| CAS | 125257-38-7 |
| EINECS | 200-589-5 |
| InChI | InChI=1/C5H4Br2S/c1-3-2-8-5(7)4(3)6/h2H,1H3 |
125257-38-7 - Physico-chemical Properties
| Molecular Formula | C5H4Br2S |
| Molar Mass | 255.96 |
| Density | 1.984 g/mL at 25 °C |
| Boling Point | 241℃ |
| Flash Point | 100℃ |
| Vapor Presure | 0.0557mmHg at 25°C |
| Storage Condition | 2-8°C |
| Refractive Index | 1.62 |
125257-38-7 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 2810 6.1 / PGIII |
| WGK Germany | 3 |
125257-38-7 - Introduction
2,3-dibromo-4-methylthiophene is an organic compound with a chemical formula of C6H4Br2S, which is a light yellow crystal at room temperature.
Some of the properties of 2,3-dibromo-4-methylthiophene include:
1. Melting point and boiling point: The melting point of the compound is about 85-87°C, and the boiling point is about 234-236°C.
2. Solubility: 2,3-dibromo-4-methylthiophene is soluble in organic solvents such as ether, alcohol and ester.
3. Reactivity: The compound is a stable organic sulfur compound, but it may decompose under the action of high temperature, strong oxidant or strong acid.
2,3-dibromo-4-methylthiophene has a wide range of applications in the field of organic synthesis. It can be used as photosensitive mordant, photosensitive pigment, dye intermediate, fluorescent probe and fluorescent sensor raw material.
The method of preparing 2,3-dibromo-4-methylthiophene mainly includes:
1. The brominated product is obtained by the reaction of 4-methyl thiophene with bromine, and then 2,3-dibromo -4-methyl thiophene is generated by reduction reaction.
2. The bromination product was obtained by the reaction of 4-methyl thiophene and hydrogen bromide, and then the selective bromination of 2,3-dibromo -4-methyl thiophene was obtained by the ortho effect.
Note the following safety information when using and handling 2,3-dibromo-4-methylthiophene:
1. This is an organic bromine compound, avoid direct contact with skin and eyes. Wear protective gloves, glasses and lab coat when using.
2. This compound may release harmful gases when heated or ignited, so it should be operated in a well-ventilated place and avoid using it near an open fire source.
3. Avoid contact with strong oxidants or strong acids to prevent dangerous reactions.
4. Store it in a sealed container, away from fire and high temperature.
Please note that the use of any chemical compound should follow strict operating procedures and necessary safety facilities. Please refer to official safety information and guidelines when using and handling.
Some of the properties of 2,3-dibromo-4-methylthiophene include:
1. Melting point and boiling point: The melting point of the compound is about 85-87°C, and the boiling point is about 234-236°C.
2. Solubility: 2,3-dibromo-4-methylthiophene is soluble in organic solvents such as ether, alcohol and ester.
3. Reactivity: The compound is a stable organic sulfur compound, but it may decompose under the action of high temperature, strong oxidant or strong acid.
2,3-dibromo-4-methylthiophene has a wide range of applications in the field of organic synthesis. It can be used as photosensitive mordant, photosensitive pigment, dye intermediate, fluorescent probe and fluorescent sensor raw material.
The method of preparing 2,3-dibromo-4-methylthiophene mainly includes:
1. The brominated product is obtained by the reaction of 4-methyl thiophene with bromine, and then 2,3-dibromo -4-methyl thiophene is generated by reduction reaction.
2. The bromination product was obtained by the reaction of 4-methyl thiophene and hydrogen bromide, and then the selective bromination of 2,3-dibromo -4-methyl thiophene was obtained by the ortho effect.
Note the following safety information when using and handling 2,3-dibromo-4-methylthiophene:
1. This is an organic bromine compound, avoid direct contact with skin and eyes. Wear protective gloves, glasses and lab coat when using.
2. This compound may release harmful gases when heated or ignited, so it should be operated in a well-ventilated place and avoid using it near an open fire source.
3. Avoid contact with strong oxidants or strong acids to prevent dangerous reactions.
4. Store it in a sealed container, away from fire and high temperature.
Please note that the use of any chemical compound should follow strict operating procedures and necessary safety facilities. Please refer to official safety information and guidelines when using and handling.
Last Update：2024-04-10 22:29:15
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