4-bromo-2-[hydroxy(methoxy)methylidene]thiophen-3(2H)-one - Names and Identifiers
4-bromo-2-[hydroxy(methoxy)methylidene]thiophen-3(2H)-one - Physico-chemical Properties
Molecular Formula | C6H5BrO3S
|
Molar Mass | 237.07 |
Density | 1.803±0.06 g/cm3 (20 ºC 760 Torr) |
Melting Point | 79-80°C |
Boling Point | 247.9±35.0℃ (760 Torr) |
Flash Point | 103.7±25.9℃ |
Water Solubility | Sparingly Soluble in water 0.95 g/L @ 25°C. |
Vapor Presure | 0.016mmHg at 25°C |
pKa | 7.93±0.15(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | 1.617 |
MDL | MFCD00052081 |
4-bromo-2-[hydroxy(methoxy)methylidene]thiophen-3(2H)-one - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin.
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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
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4-bromo-2-[hydroxy(methoxy)methylidene]thiophen-3(2H)-one - Introduction
Methyl is an organic compound whose chemical structure contains a thiophene ring, a carboxylic acid group, a hydroxyl group, and a methyl ester group.
The properties of the compound are as follows:
1. appearance: colorless to light yellow liquid.
2. molecular formula: C7H5BrO3S.
3. Molecular weight: 249.08g/mol.
4. Melting point: less than 0°C.
5. Boiling point: 105°C at atmospheric pressure.
6. Solubility: Soluble in organic solvents such as ethanol and dimethylformamide.
The main uses of this compound are:
1. organic synthesis intermediate: as an organic synthesis intermediate, it can participate in a variety of organic reactions, such as esterification reaction, substitution reaction, etc., for the construction of more complex organic molecules.
2. Material science: Because of its special structure and properties, it can be used to prepare thiophene derivative materials, such as photoelectric materials, organic light-emitting diodes, etc.
The method of preparing the compound generally includes the following steps:
1. First, 3-hydroxythiophene-2-carboxylic acid is reacted with bromoalkane to generate the corresponding ester compound.
2. Next, the reaction product is subjected to a transesterification reaction with methanol to obtain the target product.
Regarding the safety information of this compound, the following matters need to be noted:
1. Methyl is an organic compound with certain toxicity. Direct contact with skin and eyes should be avoided.
2. During use, you should wear protective glasses and gloves, and ensure that you operate under well-ventilated conditions.
3. if accidental contact or swallowed, please immediately rinse with plenty of water, and timely medical treatment.
it should be noted that the above content is for reference only, and the specific nature, use, method and safety information should also be confirmed and evaluated according to the actual situation and experimental conditions.
Last Update:2024-04-10 22:29:15