Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-19 04:57:52 UTC
Update Date2024-09-27 20:42:48 UTC
Metabolite IDMMDBc0033660
Metabolite Identification
Common NameIsorhamnetin
DescriptionIsorhamnetin is the methylated metabolite of quercetin. Quercetin is an important dietary flavonoid with in vitro antioxidant activity. However, it is found in human plasma as conjugates with glucuronic acid, sulfate or methyl groups, with no significant amounts of free quercetin present. Isorhamnetin prevents endothelial cell injuries from oxidized LDL via inhibition of lectin-like ox-LDL receptor-1 upregulation, interference of ox-LDL-mediated intracellular signaling pathway (p38MAPK activation, NF-kappaB nuclear translocation, eNOS expression) and the antioxidant activity of isorhamnetin. Isorhamnetin prevents endothelial dysfunction, superoxide production, and overexpression of p47phox induced by angiotensin II. Isorhamnetin appears to be a potent drug against esophageal cancer due to its in vitro potential to not only inhibit proliferation but also induce apoptosis of Eca-109 cells. (PMID: 15493462 , 17368593 , 17374653 , 16963021 ).
Structure
Synonyms
ValueSource
3,5,7,4'-Tetrahydroxy-3'-methoxyflavoneChEBI
3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-benzopyran-4-oneChEBI
3-MethylquercetinChEBI
IsorhamnetolChEBI
Quercetin 3'-methyl etherChEBI
3'-Methoxy-3,4',5,7-tetrahydroxyflavoneHMDB
3'-MethoxyquercetinHMDB
3'-MethylquercetinHMDB
3'-O-MethylquercetinHMDB
3,4',5,7-Tetrahydroxy-3'-methoxy-flavoneHMDB, MeSH
3,4',5,7-Tetrahydroxy-3'-methoxyflavoneHMDB, MeSH
3-MethylquercetineHMDB
4'-MethoxyquercetinHMDB
4'-MethylquercetinHMDB
4'-O-MethylquercetinHMDB
3-O-MethylquercetinMeSH, HMDB
iso-RhamnetinMeSH, HMDB
IsorhamnetineMeSH, HMDB
3-Methyl-quercetinMeSH, HMDB
3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-1-benzopyran-4-onePhytoBank
3,4’,5,7-Tetrahydroxy-3’-methoxyflavonePhytoBank
3’-MethoxyquercetinPhytoBank
3’-MethylquercetinPhytoBank
3’-O-MethylquercetinPhytoBank
Quercetin 3’-methyl etherPhytoBank
Molecular FormulaC16H12O7
Average Mass316.2623
Monoisotopic Mass316.058302738
IUPAC Name3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-chromen-4-one
Traditional Nameisorhamnetin
CAS Registry Number480-19-3
SMILES
COC1=C(O)C=CC(=C1)C1=C(O)C(=O)C2=C(O)C=C(O)C=C2O1
InChI Identifier
InChI=1S/C16H12O7/c1-22-11-4-7(2-3-9(11)18)16-15(21)14(20)13-10(19)5-8(17)6-12(13)23-16/h2-6,17-19,21H,1H3
InChI KeyIZQSVPBOUDKVDZ-UHFFFAOYSA-N