3-Bromo-2-thiophenecarboxylic acid（CAS# 7311-64-0)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | R43 – May cause sensitization by skin contact R36/37/38 – Irritating to eyes, respiratory system and skin. |
| Safety Description | S36/37 – Wear suitable protective clothing and gloves. S37/39 – Wear suitable gloves and eye/face protection S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| HS Code | 29349990 |
| Hazard Class | IRRITANT |
Introduction
Acid is an organic compound with the chemical formula C6H4BrO2S.
Nature:
-Appearance: acid is a white to yellowish solid.
-Solubility: Soluble in chloroform, acetone and chlorinated methane.
-Melting point: about 116-118 degrees Celsius.
Use:
-must acid is often used as an important intermediate in organic synthesis.
-It can be used to construct organic compounds containing thiophene ring structures.
Preparation Method: There are many synthetic methods of
-anacid. One of the commonly used methods is to use bromoacetic acid as raw material, react with thiophene under alkaline conditions to generate 3-bromothiophene, and then carry out carboxylic reaction under acidic conditions.
Safety Information:
-the acid may be irritating to the eyes, skin and respiratory system.
-During use, care should be taken to avoid inhalation of dust or contact with skin and eyes.
-Wear appropriate protective equipment such as lab gloves, goggles and face shields before operation.
-In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical attention. Appropriate first aid measures shall be provided if necessary.
