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John of Reading (talk | contribs) m Typo fixing, replaced: a O-methylated flavonol → an O-methylated flavonol using AWB (8853) |
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'''Ayanin''' is |
'''Ayanin''' is an [[O-methylated flavonol]], a type of flavonoid. It is the 3,7,4'-tri-O-methylation of [[quercetin]]. |
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It can be found in ''[[Croton schiedeanus]]''. It can also be synthetized.<ref>[http://www3.interscience.wiley.com/journal/122301975/abstract?CRETRY=1&SRETRY=0 Partial methylation of quercetin: Direct synthesis of tamarixetin, ombuin and ayanin. Koppaka V. Rao, Jacob A. Owoyale, Journal of Heterocyclic Chemistry, Volume 13 Issue 6, Pages 1293 - 1295]</ref> |
It can be found in ''[[Croton schiedeanus]]''. It can also be synthetized.<ref>[http://www3.interscience.wiley.com/journal/122301975/abstract?CRETRY=1&SRETRY=0 Partial methylation of quercetin: Direct synthesis of tamarixetin, ombuin and ayanin. Koppaka V. Rao, Jacob A. Owoyale, Journal of Heterocyclic Chemistry, Volume 13 Issue 6, Pages 1293 - 1295]</ref> |
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Revision as of 17:12, 28 February 2013
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| Names | |
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| IUPAC name
5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,7-dimethoxychromen-4-one
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| Other names
3,7,4'-Tri-O-methylquercetin
3,7,4'-trimethylquercetin 5,3'-dihydroxy-3,7,4'-trimethoxyflavone | |
| Identifiers | |
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3D model (JSmol)
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| ChEBI | |
| ChEMBL | |
| ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C18H16O7 | |
| Molar mass | 344.31 g/mol |
| Density | 1.454 g/mL |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ayanin is an O-methylated flavonol, a type of flavonoid. It is the 3,7,4'-tri-O-methylation of quercetin.
It can be found in Croton schiedeanus. It can also be synthetized.[1]
Biosynthetis
The enzyme 3,7-dimethylquercetin 4'-O-methyltransferase uses S-adenosyl methionine and 5,3',4'-trihydroxy-3,7-dimethoxyflavone (rhamnazin) to produce S-adenosylhomocysteine and 5,3'-dihydroxy-3,7,4'-trimethoxyflavone (ayanin).