74003-55-7
3,4-Dibromobenzaldehyde
CAS: 74003-55-7
Molecular Formula: C7H4Br2O
74003-55-7 - Names and Identifiers
| Name | 3,4-Dibromobenzaldehyde |
| Synonyms | 3,4-Dibromobenzaldehyde 3,4-DIBROMOBENZALDEHYDE 3,4-Dibrom benzaldehyde 3,4-Dibromo-benzaldehyde Benzaldehyde, 3,4-dibromo- 1,2-Dibromo-4-formylbenzene |
| CAS | 74003-55-7 |
| EINECS | 640-122-7 |
| InChI | InChI=1/C7H4Br2O/c8-6-2-1-5(4-10)3-7(6)9/h1-4H |
74003-55-7 - Physico-chemical Properties
| Molecular Formula | C7H4Br2O |
| Molar Mass | 263.91 |
| Density | 1.977±0.06 g/cm3(Predicted) |
| Melting Point | 67-69°C |
| Boling Point | 303.6±27.0 °C(Predicted) |
| Flash Point | 123°C |
| Water Solubility | Insoluble in water. |
| Vapor Presure | 0.00092mmHg at 25°C |
| BRN | 2573433 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Air Sensitive |
| Refractive Index | 1.645 |
| MDL | MFCD00236033 |
74003-55-7 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - 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. S36 - Wear suitable protective clothing. |
| Hazard Note | Irritant/Air Sensitive |
74003-55-7 - Introduction
3,4-Dibromobenzalhyde (3,4-Dibromobenzalhyde) is an organic compound with the molecular formula C7H4Br2O and a molecular weight of 241.92g/mol. The following is a description of its nature, use, formulation and safety information:
1. nature:
-Appearance: Colorless crystal or white crystalline powder.
-Melting point: about 70-73°C.
-Boiling point: about 277°C.
-Density: about 2.16g/cm3.
-Solubility: Soluble in ethanol and dichloromethane, slightly soluble in water.
2. use:
-3,4-Dibromobenzalhyde can be used as an important intermediate in organic synthesis and used to prepare other organic compounds. For example, it can be used in the synthesis of dyes, pharmaceuticals and pesticides.
-It can also be used as a ligand for metal ion complexes and participate in organometallic chemical reactions.
3. preparation method:
-3,4-Dibromobenzalhyde can be prepared by reacting benzaldehyde with hydrogen bromide under alkaline conditions. The specific step is that benzaldehyde is reacted with hydrogen bromide in the presence of sodium hydride or sodium bicarbonate, and the product is obtained by hydrolysis and crystallization.
4. Safety Information:
-3,4-Dibromobenzalhyde is an organic compound with certain toxicity and direct contact should be avoided.
-Be careful to use personal protective equipment such as chemical protective gloves, safety glasses and protective masks during operation.
-Avoid contact with skin, eyes and respiratory tract, and ensure that the operation is carried out in a well-ventilated place.
-Comply with specifications for safe handling of chemicals during storage and handling, and properly label and store. In the event of a leak, appropriate measures shall be taken to clean up and dispose of it.
1. nature:
-Appearance: Colorless crystal or white crystalline powder.
-Melting point: about 70-73°C.
-Boiling point: about 277°C.
-Density: about 2.16g/cm3.
-Solubility: Soluble in ethanol and dichloromethane, slightly soluble in water.
2. use:
-3,4-Dibromobenzalhyde can be used as an important intermediate in organic synthesis and used to prepare other organic compounds. For example, it can be used in the synthesis of dyes, pharmaceuticals and pesticides.
-It can also be used as a ligand for metal ion complexes and participate in organometallic chemical reactions.
3. preparation method:
-3,4-Dibromobenzalhyde can be prepared by reacting benzaldehyde with hydrogen bromide under alkaline conditions. The specific step is that benzaldehyde is reacted with hydrogen bromide in the presence of sodium hydride or sodium bicarbonate, and the product is obtained by hydrolysis and crystallization.
4. Safety Information:
-3,4-Dibromobenzalhyde is an organic compound with certain toxicity and direct contact should be avoided.
-Be careful to use personal protective equipment such as chemical protective gloves, safety glasses and protective masks during operation.
-Avoid contact with skin, eyes and respiratory tract, and ensure that the operation is carried out in a well-ventilated place.
-Comply with specifications for safe handling of chemicals during storage and handling, and properly label and store. In the event of a leak, appropriate measures shall be taken to clean up and dispose of it.
Last Update：2024-04-09 02:00:47
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