21815-91-8

21815-91-8 - Names and Identifiers

Name	3-Chlorobenzo[b]-2-thiophenecarboxylic acid chloride
Synonyms	AKOS 92491 AKOS B000002 AKOS AU36-M326 ASISCHEM T31091 BUTTPARK 306-08 ART-CHEM-BB B000002 3-CHLOROBENZOTHIOPHENE-2-CARBONYL CHLORIDE 3-Chlorobenzo[b]thiophene-2-carbonyl chloride 3-chloro-1-benzothiophene-2-carbonyl chloride 3-CHLOROBENZO[B]THIOPHENE-2-CARBONYL CHLORIDE 3-Chloro-1-benzothiophene-2-carbonyl chloride 3-Chlorobenzo[b]-2-thiophenecarboxylic acid chloride
CAS	21815-91-8
EINECS	625-793-6
InChI	InChI=1/C9H4Cl2OS/c10-7-5-3-1-2-4-6(5)13-8(7)9(11)12/h1-4H

21815-91-8 - Physico-chemical Properties

Molecular Formula	C9H4Cl2OS
Molar Mass	231.1
Density	1.526±0.06 g/cm3(Predicted)
Melting Point	112-116°C
Boling Point	342.2±22.0 °C(Predicted)
Flash Point	160.7°C
Vapor Presure	7.67E-05mmHg at 25°C
BRN	1309703
Storage Condition	Inert atmosphere,Room Temperature
Sensitive	Moisture Sensitive
Refractive Index	1.686
MDL	MFCD00053069

21815-91-8 - Risk and Safety

Risk Codes	34 - Causes burns
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. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	UN 3261 8/PG 2
WGK Germany	3
HS Code	29349990
Hazard Note	Irritant
Hazard Class	8
Packing Group	II

21815-91-8 - Introduction

3-Chlorobenzo [B] thiophene-2-carbonyl chloride is an organic compound with the chemical formula C10H5ClOClS. The following is an introduction to its nature, use, preparation and safety information:

Nature:
-Appearance: White or light yellow crystal powder.
-Melting point: About 100-101°C.
-Boiling point: About 329-334 ℃.
-Solubility: Slightly soluble in water, soluble in organic solvents such as ethers and chlorinated hydrocarbons.

Use:
- 3-chlorobenzo [B] thiophene-2-carbonyl chloride can be used as intermediates and reagents in organic synthesis.
-It can be used to synthesize other compounds, such as benzothiophenes, or as a catalyst for chemical reactions.

Method:
The preparation of 3-chlorobenzo [B] thiophene-2-carbonyl chloride is usually completed by the following steps:
1. First, benzo [B] thiophene is dissolved in phosgene solution, and the reaction is stirred at room temperature.
2. After the reaction is completed, water or an acidic aqueous solution is added to neutralize the remaining phosgene.
3. Finally, the product is extracted from the reaction liquid with ether or chlorinated hydrocarbon.

Safety Information:
3-chlorobenzo [B] thiophen-2-carbonyl chloride is an organic chlorine compound, which is similar to many organic compounds and has certain risks. Here are some safety considerations:
-Irritating, avoid direct contact with skin and eyes.
-In the use of the process, should be equipped with appropriate personal protective equipment, such as gloves, goggles, etc.
-Operate in a well-ventilated place to avoid inhaling its vapors.
-Avoid contact with oxidants during storage to prevent dangerous reactions.
-In the event of an accident or accidental ingestion, seek medical help immediately.

Last Update：2024-04-10 22:29:15