Mearnsetin

Mearnsetin
Names

IUPAC name 3,3′,5,5′,7-Pentahydroxy-4′-methoxyflavone
Systematic IUPAC name 2-(3,5-Dihydroxy-4-methoxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one
Other names 4'-Methylmyricetin
Identifiers
CAS Number	16805-10-0^Y
3D model (JSmol)	Interactive image
ChemSpider	8534833
PubChem CID	10359384
UNII	8NQ5Q3Q5ES^Y
CompTox Dashboard (EPA)	DTXSID20438720
InChI InChI=1S/C16H12O8/c1-23-16-9(19)2-6(3-10(16)20)15-14(22)13(21)12-8(18)4-7(17)5-11(12)24-15/h2-5,17-20,22H,1H3 Key: HKEQVXVLTOSXLQ-UHFFFAOYSA-N InChI=1/C16H12O8/c1-23-16-9(19)2-6(3-10(16)20)15-14(22)13(21)12-8(18)4-7(17)5-11(12)24-15/h2-5,17-20,22H,1H3 Key: HKEQVXVLTOSXLQ-UHFFFAOYAX
SMILES COC1=C(C=C(C=C1O)C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O
Properties
Chemical formula	C₁₆H₁₂O₈
Molar mass	332.264 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references

Chemical compound

Mearnsetin is an O-methylated flavonol. It can be found in Eucalyptus globulus and in Elaeocarpus lanceofolius.^[1] The compound has antioxidative properties.^[2]

Mearnsetin 3,7-dirhamnoside can be found in the fern Asplenium antiquum.^[3]

References

^ Ray, A.B.; Dutta, S.C.; Dasgupta, S. (1976). "Flavonoids of Elaeocarpus lanceofolius". Phytochemistry. 15 (11): 1797–1798. doi:10.1016/S0031-9422(00)97498-3.
^ Sadasivam, K.; Kumaresan, R. (2011). "Antioxidant behavior of mearnsetin and myricetin flavonoid compounds--a DFT study". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 79 (1): 282–93. Bibcode:2011AcSpA..79..282S. doi:10.1016/j.saa.2011.02.042. PMID 21420896.
^ Mizuno, Mizuo; Kyotani, Yosuke; Iinuma, Munekazu; Tanaka, Toshiyuki; Kojima, Hiroyuki; Iwatsuki, Kunio (1991). "Mearnsetin 3,7-dirhamnoside from Asplenium antiquum". Phytochemistry. 30 (8): 2817–2818. doi:10.1016/0031-9422(91)85158-V.

Flavonols and their conjugates

Backbone

Aglycones	3-Hydroxyflavone (synthetic) and derivatives

Flavonols

Aglycones

Conjugates

Glycosides of herbacetin

Rhodionin
Rhodiosin

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

Betmidin (Myricetin 3-O-arabinoside)
Myricetin 3-O-rutinoside
Myricetin-3-O-neohesperidoside
Myricitrin (Myricetin 3-O-rhamnoside)

Conjugates of quercetin

Sulfates

Quercetin 3-O-sulfate
Quercetin 3,3'-bissulfate
Quercetin 3,4'-bissulfate

Glycosides

Avicularin (quercetin-3-O-α-L-arabinofuranoside)
CTN-986
Guaijaverin (quercetin 3-O-arabinoside)
Heliosin (quercetin 3-digalactoside)
Hyperoside (quercetin 3-O-galactoside)
Isoquercetin (quercetin 3-O-glucoside)
Miquelianin (quercetin 3-O-glucuronide)
Quercetin 3,4'-diglucoside
Quercetin-3-sophorodide
Quercitrin (quercetin 3-O-rhamnoside)
Rutin (quercetin rutinoside)
Reinutrin (quercetin-3-D-xyloside)
Spiraeoside (quercetin 4'-O-glucoside)
Taxillusin (galloylated 3-O-glucoside 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)