5-BROMOTHIOPHENE-2-CARBONITRILE - Names and Identifiers
5-BROMOTHIOPHENE-2-CARBONITRILE - Physico-chemical Properties
Molecular Formula | C5H2BrNS
|
Molar Mass | 188.05 |
Density | 1.694 g/mL at 25 °C (lit.) |
Boling Point | 124°C/34mmHg(lit.) |
Flash Point | 214°F |
Vapor Presure | 0.0829mmHg at 25°C |
Specific Gravity | 1.619 |
Maximum wavelength(λmax) | 276nm(Benzene)(lit.) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | n20/D 1.6190(lit.) |
5-BROMOTHIOPHENE-2-CARBONITRILE - Risk and Safety
Hazard Symbols | Xn - Harmful
|
Risk Codes | R20/21/22 - Harmful 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.
S36/37 - Wear suitable protective clothing and gloves.
|
UN IDs | 3267 |
WGK Germany | 3 |
HS Code | 29309090 |
5-BROMOTHIOPHENE-2-CARBONITRILE - Introduction
It is an organic compound with the chemical formula C6H3BrNS. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: Colorless to light yellow crystal
-Solubility: Soluble in organic solvents such as ethanol and dichloromethane, insoluble in water
-Melting Point: 62-66 ℃
-Boiling Point: 269-273 ℃
-Molecular weight: 195.06g/mol
Use:
It is an important organic synthesis intermediate compound, which is widely used in the fields of pharmacy, pesticide, dye and photovoltaic. It can be used in the synthesis of other organic compounds, used to construct the skeleton structure of thiophene compounds, so as to obtain the target compounds with specific functions.
Method:
Synthesis can be carried out by the following steps:
1. Under alkaline conditions, thiophene reacts with bromoacetonitrile to generate pyridine.
2. After appropriate purification and crystallization steps, the pure product is obtained.
Safety Information:
-may cause irritation to the eyes, skin and respiratory system, so wear personal protective equipment such as protective gloves, glasses and masks during operation.
-Avoid inhaling its dust or contact with skin.
-In case of accidental use or contact, seek medical attention immediately and provide relevant safety information to the doctor.
Please note that when using and handling chemicals, you must follow safe operating procedures and ensure that you operate under appropriate laboratory conditions.
Last Update:2024-04-10 22:29:15