89456-41-7

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 5,8-dihydroxy-7-methoxy-2-(4-methoxyphenyl)-
• CAS NO: 89456-41-7
• Molecular Formula: C17H14O6
• Molecular Weight: 314.295
• Mol File: 89456-41-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 5,8-dihydroxy-7-methoxy-2-(4-methoxyphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 5,8-dihydroxy-7-methoxy-2-(4-methoxyphenyl)-(89456-41-7)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 5,8-dihydroxy-7-methoxy-2-(4-methoxyphenyl)-(89456-41-7)

Safety Data

• Hazardous Substances Data: 89456-41-7(Hazardous Substances Data)

Upstream product

• 480-44-4 5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one 
• 89456-21-3 4-Methoxy-benzoic acid 2-acetyl-6-benzyloxy-3,5-dimethoxy-phenyl ester 
• 89456-14-4 1-(3-Benzyloxy-2-hydroxy-4,6-dimethoxy-phenyl)-3-(4-methoxy-phenyl)-propane-1,3-dione 
• 89456-28-0 8-Benzyloxy-5,7-dimethoxy-2-(4-methoxy-phenyl)-chromen-4-one 
• 89456-13-3 2,3-bis(benzyloxy)-4,6-dimethoxyacetophenone 
• 54299-57-9 3-benzyloxy-2-hydroxy-4,6-dimethoxyacetophenone 
• 21919-66-4 2,30dihydroxy-4,6-dimethoxyacetophenone 
• 21919-71-1 8-Hydroxy-5,7-dimethoxy-2-(4-methoxy-phenyl)-chromen-4-one 
• 51876-19-8 5,7,8-trihydroxy-4'-methoxyflavone 
• 5128-44-9 5-hydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one 

Downstream Products

• 6601-66-7 6-demethoxytangeretin 
• 57096-03-4 5-hydroxy-7,8-dimethoxy-2-(4-methoxyphenyl)-4-benzopyrone 

Relevant articles and documents

Regioselective hydroxylation of 2-hydroxychalcones by dimethyldioxirane towards polymethoxylated flavonoids

The flavone nucleus is part of a large number of natural products and medicinal compounds. In this presentation the novel regioselective hydroxylation of hydroxyarenes with DMD is described. The results showed further that flavonoids with 5-hydroxy group were selectively oxyfunctionalized at the para-position C8 carbon atom by DMD. Finally, according to this methodology, the naturally occurring isosinensetin, tangeretin, sinensetin, nobiletin, natsudaidain, gardenin B, 3,3′,4′,5,6,7,8- heptamethoxyflavone, quercetin and its derivatives were synthesized.

O-methylation of flavonoids by cell-free extracts of calamondin orange

Cell-free extracts of calamondin orange (Citrus mitis) catalysed the O-methylation of almost all hydroxyls of a number of flavonoids, indicating the existence in citrus tissues of ortho, meta, para and 3-O-methyltransferases. The latter, hitherto unreported enzyme, catalysed the formation of 3-O-methyl ethers of galangin and quercetin. The stepwise O-methylation of a number of compounds, especially quercetin and quercetagetin, tends to suggest a coordinated sequence of O-methylations on the surface of a multienzyme complex. The methyl acceptor abilities of the flavonoid substrates used are discussed in relation to their hydroxyl substitution patterns and their negative electron density distribution.