Natsudaidain    Natsudaidain structure    Names      IUPAC name  3-Hydroxy-3′,4′,5,6,7,8-hexamethoxyflavone
     Systematic IUPAC name  2-(3,4-Dimethoxyphenyl)-3-hydroxy-5,6,7,8-tetramethoxy-4H -1-benzopyran-4-one
   Identifiers                           ChemSpider                        UNII                  InChI=1S/C21H22O9/c1-24-11-8-7-10(9-12(11)25-2)16-15(23)14(22)13-17(26-3)19(27-4)21(29-6)20(28-5)18(13)30-16/h7-9,23H,1-6H3
 N  Key: CCJBNIRSVUKABH-UHFFFAOYSA-N
 N  InChI=1/C21H22O9/c1-24-11-8-7-10(9-12(11)25-2)16-15(23)14(22)13-17(26-3)19(27-4)21(29-6)20(28-5)18(13)30-16/h7-9,23H,1-6H3
Key: CCJBNIRSVUKABH-UHFFFAOYAO
       COC1=C(C=C(C=C1)C2=C(C(=O)C3=C(O2)C(=C(C(=C3OC)OC)OC)OC)O)OC
     Properties        C21 H22 O9       Molar mass  418.39 g/mol                 Except where otherwise noted, data are given for materials in their 
standard state  (at 25 °C [77 °F], 100 kPa).
Infobox references
    
 Natsudaidain  is an O-methylated flavonol , a type of chemical compound. It can be isolated from Citrus  plants[ 1] Citrus natsudaidai 
 
References    ^ Matsui, T.; Ito, C.; Itoigawa, M.; Okada, T.; Furukawa, H. (2009). "Effect of natsudaidain isolated from Citrus  plants on TNF-α  and cyclooxygenase-2 expression in RBL-2H3 cells". Journal of Pharmacy and Pharmacology . 61  (1): 109– 114. doi :10.1211/jpp/61.01.0015 . PMID  19126304 .    
Flavonols and their conjugates
Backbone 
Flavonols 
Aglycones Conjugates 
Glycosides of herbacetin  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-arabinopyranoside  Kaempferol 3-alpha-D-arabinopyranoside  Kaempferol 7-alpha-L-arabinoside  Kaempferol 7-O-glucoside Kaempferol 3-lathyroside  Kaempferol 4'-rhamnoside  Kaempferol 5-rhamnoside  Kaempferol 7-rhamnoside  Kaempferol 7-O-alpha-L-rhamnofuranoside  Kaempferol 3-xyloside  Kaempferol 7-xyloside  Robinin  (kaempferol-3-O-robinoside-7-O-rhamnoside)Kaempferol 3-O-rutinoside Sophoraflavonoloside (Kaempferol 3-O-sophoroside)  Trifolin  (Kaempferol 3-O-beta-D-galactoside) Glycosides of myricetin  Conjugates of quercetin  
O -Methylated flavonols
Aglycones Glycosides 
of isorhamnetin  Narcissin (Isorhamnetin 3-O-rutinoside)  Isorhamnetin 3-O-glucoside  Tamarixetin 7-rutinoside  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-glucoside  Xanthorhamnin  (Rhamnetin glycoside) 
Derivative flavonols 
Aglycones  Noricaritin  Dihydronoricaritin  Glycosides 
Pyranoflavonols 
Furanoflavonols 
Semisynthetic