22109-96-2

Basic information

• Product Name: 4′,7-dihydroxy-3,3′,5,8-tetramethoxyflavone
• Synonyms: 4′,7-dihydroxy-3,3′,5,8-tetramethoxyflavone
• CAS NO: 22109-96-2
• Molecular Weight: 374.347
• Mol File: 22109-96-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4′,7-dihydroxy-3,3′,5,8-tetramethoxyflavone(CAS DataBase Reference)
• NIST Chemistry Reference: 4′,7-dihydroxy-3,3′,5,8-tetramethoxyflavone(22109-96-2)
• EPA Substance Registry System: 4′,7-dihydroxy-3,3′,5,8-tetramethoxyflavone(22109-96-2)

Safety Data

• Hazardous Substances Data: 22109-96-2(Hazardous Substances Data)

Upstream product

• 1592-47-8 4-(benzyloxy)-3-methoxybenzoic anhydride 
• 42923-40-0 2,4-dihydroxy-3,6,ω-trimethoxyacetophenone 
• 124458-95-3 7,4'-diacetyloxy-5-hydroxy-3,8,3'-trimethoxyflavone 
• 14965-08-3 5,7,4'-trihydroxy-3,8,3'-trimethoxyflavone 
• 110205-36-2 4'-(benzyloxy)-7-hydroxy-3,3',5,8-tetramethoxyflavone 
• 23344-33-4 7,4'-Diacetoxy-3,5,8,3'-tetramethoxy-flavon 

Downstream Products

• 3153-84-2 limocitrin tetraacetate 
• 489-33-8 limocitrin 
• 117155-52-9 3,3',5,8-tetramethoxy-4',7-bis(tosyloxy)flavone 
• 14965-08-3 5,7,4'-trihydroxy-3,8,3'-trimethoxyflavone 
• 33554-57-3 3,7-dihydroxy-2-(4-hydroxy-3-methoxy-phenyl)-5,8-dimethoxy-chromen-4-one 

Relevant articles and documents

ANTIMICROBIAL FLAVONOIDS FROM PSIADIA TRINERVIA AND THEIR METHYLATED AND ACETYLATED DERIVATIVES

Key Word Index - Psiadia trinervia; Compositae; flavonoids; antifungal; antibacterial; Cladosporium cucumerinum; Bacillus cereus; bioautography.Abstract - From a dichloromethane extract and a hydrolysed methanolic extract from the leaves of Psiadia trinervia, 13 3-methylated flavonol have beeen isolated.Their structures were established by the usual spectoscopic methods (UV, EIMS, 1H and 13CNMR).Ayanin, casticin, chrysosplenol-D and 5,7,4'-trihydroxy-3,8-dimethoxyflavone were responsible for the antifungal activity found in the preliminary screening.Chrysosplenol-D, isokaemferide, 5,7,4'-trihydroxy-3,3'-dimethoxyflavone and 5,7,4'-trihydroxy-3,8-dimethoxyflavone displayed antibacterial activity.Twenty-nine derivatives were prepared by permethylation and selective methylation of the free hydroxyl group at C-5.The antimicrobial activities of the isolates and derivatives were determined by bioautographic assays using C. cucumerinum and B. cereus as test organisms.