Santin   |  Chemical structure of santin | 
  | Names | 
   | IUPAC name 5,7-Dihydroxy-3,4′,6-trimethoxyflavone | 
   | Systematic IUPAC name 5,7-Dihydroxy-3,6-dimethoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one | 
  | Other names 5,7-Dihydroxy-3,6,4′-trimethoxyflavone | 
  | Identifiers | 
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     | ChEBI |  | 
  | ChEMBL |  | 
  | ChemSpider |  | 
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   | UNII |  | 
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  |   InChI=1S/C18H16O7/c1-22-10-6-4-9(5-7-10)16-18(24-3)15(21)13-12(25-16)8-11(19)17(23-2)14(13)20/h4-8,19-20H,1-3H3  YKey: DWZAJFZEYZIHPO-UHFFFAOYSA-N  YInChI=1/C18H16O7/c1-22-10-6-4-9(5-7-10)16-18(24-3)15(21)13-12(25-16)8-11(19)17(23-2)14(13)20/h4-8,19-20H,1-3H3 Key: DWZAJFZEYZIHPO-UHFFFAOYAB
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  |   COC1=CC=C(C=C1)C2=C(C(=O)C3=C(C(=C(C=C3O2)O)OC)O)OC
 | 
  | Properties | 
  |  | C18H16O7 | 
  | Molar mass | 344.319 g·mol−1 | 
           | Except where otherwise noted, data are given for materials in their standard state  (at 25 °C [77 °F], 100 kPa).Infobox references | 
  
 Santin is an O-methylated flavonol. It was isolated from Tanacetum microphyllum.[1] 
 References
  | Flavonols and their conjugates | 
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| Backbone |  | 
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| Flavonols | | Aglycones |  | 
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 | Conjugates | | Glycosides of herbacetin |  | 
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 | Glycosides of kaempferol |  Afzelin (Kaempferol 3-rhamnoside)Astragalin (kaempferol 3-O-glucoside)Kaempferitrin (kaempferol 3,7-dirhamnoside)Juglanin (Kaempferol 3-O-arabinoside)Kaempferol 3-alpha-L-arabinopyranosideKaempferol 3-alpha-D-arabinopyranosideKaempferol 7-alpha-L-arabinosideKaempferol 7-O-glucosideKaempferol 3-lathyrosideKaempferol 4'-rhamnosideKaempferol 5-rhamnosideKaempferol 7-rhamnosideKaempferol 7-O-alpha-L-rhamnofuranosideKaempferol 3-xylosideKaempferol 7-xylosideRobinin (kaempferol-3-O-robinoside-7-O-rhamnoside)Kaempferol 3-O-rutinosideSophoraflavonoloside (Kaempferol 3-O-sophoroside)Trifolin (Kaempferol 3-O-beta-D-galactoside)
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 | Glycosides of myricetin |  | 
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 | Conjugates of quercetin |  | 
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| O-Methylated flavonols | | Aglycones |  | 
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 | Glycosides | | of isorhamnetin |  Narcissin (Isorhamnetin 3-O-rutinoside)Isorhamnetin 3-O-glucosideTamarixetin 7-rutinoside
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 | other |  Azalein (Azaleatin 3-O-α-L-rhamnoside)Centaurein (Centaureidin 7-O-glucoside)Eupalin (Eupalitin 3-0-rhamnoside)Eupatolin (Eupatolitin 3-O-rhamnoside)Jacein (Jaceidin 7-O-glucoside)Patulitrin (Patuletin 7-O-glucosideXanthorhamnin (Rhamnetin glycoside)
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| Derivative flavonols | | Aglycones |  NoricaritinDihydronoricaritin
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 | Glycosides |  | 
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| Pyranoflavonols |  | 
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| Furanoflavonols |  | 
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| Semisynthetic |  | 
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