3-bromo-4H-chromen-4-one - Names and Identifiers
3-bromo-4H-chromen-4-one - Physico-chemical Properties
Molecular Formula | C9H5BrO2
|
Molar Mass | 225.04 |
Density | 1.738±0.06 g/cm3(Predicted) |
Melting Point | 94-98°C(lit.) |
Boling Point | 269.5±40.0 °C(Predicted) |
Flash Point | 116.8°C |
Vapor Presure | 0.00724mmHg at 25°C |
Appearance | powder to crystal |
Color | White to Orange to Green |
BRN | 125684 |
Storage Condition | Inert atmosphere,Room Temperature |
Refractive Index | 1.655 |
MDL | MFCD00017337 |
3-bromo-4H-chromen-4-one - Risk and Safety
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.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
|
WGK Germany | 3 |
3-bromo-4H-chromen-4-one - Introduction
3-Bromochromone is an organic compound with the chemical formula C9H5BrO. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 3-Bromochromone is a light yellow solid.
-Melting point: approximately 70-72°C.
-Boiling point: approximately 334°C.
-Solubility: 3-Bromochromone in ethanol, acetone, chloroform and other organic solvents soluble, insoluble in water.
Use:
-Chemical research: 3-Bromochromone can be used as a starting material for organic synthesis and for the synthesis of other organic compounds, such as biologically active molecules, dyes, etc.
-Pharmaceutical industry: 3-Bromochromone has certain applications in drug synthesis and can be used as a drug intermediate.
Preparation Method:
3-Bromochromone has many preparation methods, the following is a common method:
First, in the presence of nitric acid and sulfuric acid, 4-hydroxycoumarin is reacted with bromoethane to obtain 3-Bromochromone.
Safety Information:
- 3-Bromochromone should be kept away from sources and open flames and stored in a cool, well-ventilated place.
-During operation, personal protective measures should be taken, such as wearing protective glasses, protective gloves and protective clothing.
-Avoid inhaling its gas or dust, such as accidental inhalation, immediately to the ventilation of fresh air.
-In case of skin contact, rinse immediately with plenty of water and seek medical attention.
-If ingestion or swallowing by mistake, gargle immediately and seek medical treatment immediately.
-When handling 3-Bromochromone, follow the correct laboratory safety operating procedures and follow relevant regulations.
Last Update:2024-04-09 21:01:54