28033-47-8

Basic information

• Product Name: 5-CHLOROISOBENZOFURAN-1(3H)-ONE
• Synonyms: 5-CHLOROISOBENZOFURAN-1(3H)-ONE;5-Chlorobenzofuran-2(3H)-one
• CAS NO: 28033-47-8
• Molecular Formula: C₈H₅ClO₂
• Molecular Weight: 168.5771
• Mol File: 28033-47-8.mol
• Article Data: 1

Chemical Properties

• Melting Point: 88-89 °C
• Boiling Point: 294.439°C at 760 mmHg
• Flash Point: 155.264°C
• Appearance: /
• Density: 1.428g/cm³
• Vapor Pressure: 0.002mmHg at 25°C
• Refractive Index: 1.601
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: 5-CHLOROISOBENZOFURAN-1(3H)-ONE(CAS DataBase Reference)
• NIST Chemistry Reference: 5-CHLOROISOBENZOFURAN-1(3H)-ONE(28033-47-8)
• EPA Substance Registry System: 5-CHLOROISOBENZOFURAN-1(3H)-ONE(28033-47-8)

Safety Data

• Hazardous Substances Data: 28033-47-8(Hazardous Substances Data)

Usage

General Description

5-Chloroisobenzofuran-1(3H)-one, also known as 5-Chloro-3H-isobenzofuranone, is a chemical compound with the molecular formula C8H5ClO2. It is a white to pale yellow solid with a melting point of 94-97°C. 5-CHLOROISOBENZOFURAN-1(3H)-ONE is commonly used as an intermediate in the production of pharmaceuticals and agrochemicals. It has also been studied for its potential biological activities, including its ability to inhibit enzymes and its potential use as a building block in pharmaceutical synthesis. Additionally, 5-Chloroisobenzofuran-1(3H)-one has been investigated for its environmental and toxicological effects. Overall, this compound has important applications in the fields of chemistry, pharmaceuticals, and environmental science.

InChI:InChI=1/C8H5ClO2/c9-6-1-2-7-5(3-6)4-8(10)11-7/h1-3H,4H2

Upstream product

• 122-88-3 4-Chlorophenoxyacetic acid 

Downstream Products

• 256235-29-7 3-Phenylthio-5-chloro-2-benzofuranone 
• 42493-02-7 5-chlorocoumaranedione-3-monoxime 
• 2596-05-6 α-amino-2-hydroxy-5-chlorophenylacetic acid 
• 28033-52-5 N-Butyl-5-chlor-2-hydroxyphenylacetamid 

Relevant articles and documents

Photodegradation of Dichlorprop and 2-Naphthoxyacetic Acid in Water. Combined GC-MS and GC-FTIR Study

We have examined the photochemical transformations of dichlorprop (1) and 2-naphthoxyacetic acid (2) in aqueous solution, by means of combined GC-MS and GC-FTIR analysis. Photolysis of 1 under oxygen atmosphere led to 2-chlorophenol (5), 2,4-dichlorophenol (6), 4-chlorophenol (7), 2,4-dichlorophenyl acetate (8), the lactone of 2-(4-chloro-2-hydroxyphenoxy)propionic acid (9), and 2-(2-chlorophenoxy)propionic acid (10). Irradiation under argon atmosphere led again to 5, 6, 7, and 10 together with 2,4-dichlorophenyl ethyl ether (11). Photolysis of 2 under aerobic conditions gave β-naphthol (12), together with minor amounts of 2-hydroxy-1-naphthaldehyde (13) and naphtho [2,1-b]furan-2(1H)-one (14). Under argon atmosphere only 12 and 14 were detected. Therefore, the most general processes were photolytic cleavage of the aryl-halogen bond (route i) and the aryloxy-carbon bond (route ii). Similar photodegradation pathways had been previously observed for 2,4-D and 4-CPA and were confirmed in this work. The formation of 8, 11, and 13 must occur via cleavage of the carbon-carbon bond a to the carboxy group (route iii). Formation of this type of photoproducts in phenoxyalkanoic acid pesticides is unprecedented. Its structure was further assessed by alternative synthesis.