1832-98-0

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 2-(3-hydroxy-4-methoxyphenyl)-3,5,7-trimethoxy-
• CAS NO: 1832-98-0
• Molecular Formula: C19H18O7
• Molecular Weight: 358.348
• Mol File: 1832-98-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 2-(3-hydroxy-4-methoxyphenyl)-3,5,7-trimethoxy-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 2-(3-hydroxy-4-methoxyphenyl)-3,5,7-trimethoxy-(1832-98-0)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 2-(3-hydroxy-4-methoxyphenyl)-3,5,7-trimethoxy-(1832-98-0)

Safety Data

• Hazardous Substances Data: 1832-98-0(Hazardous Substances Data)

Upstream product

• 124458-89-5 3'-acetoxy-5-hydroxy-3,7,4'-trimethoxyflavone 
• 572-32-7 ayanin 
• 209982-72-9 2-(3-benzyloxy-4-methoxy-phenyl)-3,5,7-trimethoxy-chromen-4-one 
• 95938-85-5 2-(3-acetoxy-4-methoxy-phenyl)-3,5,7-trimethoxy-chromen-4-one 
• 17874-42-9 2'-hydroxy-2,4',6'-trimethoxyacetophenone 
• 500-99-2 3,5-dimethoxyphenol 

Downstream Products

• 529-40-8 ombuin 
• 95938-85-5 2-(3-acetoxy-4-methoxy-phenyl)-3,5,7-trimethoxy-chromen-4-one 

Relevant articles and documents

Isolation and characterization of a new allelochemical from seeds of Adenanthera pavonina linn

A new allelochemical (1), m.p. 282-284 °C, m.f. C31H 36O19, [M]+ 712 (FABMS), has been isolated from methanolic extract of the seeds of Adenanthera pavonina Linn. alongwith two known compounds 2',4',7-trihydroxy isoflavone and isovitexin. The structure of a new compound was characterized as 3,5,7,3',4'-pentahydroxy flavone-3'-O-α-L- rhamnopyranosyl-(1→4)-O-α-L-arabinopyranosyl-(1→3)- O-b-D- xylopyranoside, by various colour reactions, spectral analysis and chemical degradations.

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.