82334-23-4

Basic information

• Product Name: 2H-1-Benzopyran-6-carboxaldehyde, 7-hydroxy-8-methoxy-2-oxo-
• CAS NO: 82334-23-4
• Molecular Formula: C11H8O5
• Molecular Weight: 220.182
• Mol File: 82334-23-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2H-1-Benzopyran-6-carboxaldehyde, 7-hydroxy-8-methoxy-2-oxo-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-1-Benzopyran-6-carboxaldehyde, 7-hydroxy-8-methoxy-2-oxo-(82334-23-4)
• EPA Substance Registry System: 2H-1-Benzopyran-6-carboxaldehyde, 7-hydroxy-8-methoxy-2-oxo-(82334-23-4)

Safety Data

• Hazardous Substances Data: 82334-23-4(Hazardous Substances Data)

Upstream product

• 298-81-7 9-methoxy-7H-furo[3,2-g][1]benzopyran-7-one 
• 67-56-1 methanol 

Downstream Products

• 298-81-7 9-methoxy-7H-furo[3,2-g][1]benzopyran-7-one 
• 110335-10-9 7-hydroxy-8-methoxy-6-(phenylhydrazono-methyl)-coumarin 

Relevant articles and documents

The oxidized products of 8-methoxypsoralen (8-MOP) with H2O2-NaOCl

In order to obtain adducts of 8-methoxypsoralen (8-MOP, 1) and singlet oxygen (1O2), the oxidation of 1 with chemically generated singlet oxygenin H2O2 -NaOCl was undertaken. Bioassay-directed fractionation of the crude oxidized products has led to the isolation and characterization of a novel derivative of 1, 2,3-dihydro-2,9-dimethoxy-3-hydroxy-7H-furo[3,2-g][1]benzopyran-7-one (2) as a substance inhibiting chemotactic activity of polymorphonuclear neutrophils toward anaphylatoxin C5(a) des Arg. The structure of 2 was determined from the spectroscopic data and by correlation with its acetate (2a). Furthermore, the oxidation of 1 in H2O2-NaOCl afforded 5-chloro-9-methoxy-7H-furo[3,2-g][1]benzopyran-7-one (3) and 6-formyl-7-hydroxy-8-methoxy-2H-1-benzopyran-2-one (4) along with 1, but they exhibited no such activity.