Ermanin

Ermanin

IUPAC name 5,7-dihydroxy-3-methoxy-2-(4-methoxyphenyl)chromen-4-one
Other names 3,4'-Dimethoxychrysin Kaempferol-3,4'-dimethylether Kaempferol 3,4'-di-O-methyl ether 5,7-Dihydroxy-3,4'-dimethoxyflavone 5,7-Dihydroxy-3-methoxy-2-(4-methoxyphenyl)-4-benzopyrone
Identifiers
CAS number	20869-95-8
PubChem	5352001
Jmol-3D images	Image 1
SMILES COC1=CC=C(C=C1)C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)OC
Properties
Molecular formula	C₁₇H₁₄O₆
Molar mass	314.28 g/mol
Exact mass	314.079038 u
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Ermanin is an O-methylated flavonol. It can be found in Tanacetum microphyllum.^[1]

References

^ Isolation of Two Flavonoids from Tanacetum microphyllum as PMA-Induced Ear Edema Inhibitors. Jacqueline Martinez, Ana Maria Silván, Maria José Abad, Paulina Bermejo and Angel Villar, J. Nat. Prod., 1997, 60 (2), pp. 142–144, doi:10.1021/np960163u

Flavonols and their conjugates

Backbone

Aglycones	3-Hydroxyflavone (synthetic) and derivatives

Aglycones

Conjugates

Glycosides of herbacetin

Rhodionin | Rhodiosin

Glycosides of kaempferol

Glycosides of myricetin

Myricetin 3-O-rutinoside | Myricetin-3-O-neohesperidoside | Myricitrin

Conjugates of quercetin

Sulfates	Quercetin 3-O-sulfate \| Quercetin 3,3'-bissulfate \| Quercetin 3,4'-bissulfate

Glycosides	CTN-986 \| Guaijaverin (quercetin 3-O-arabinoside) \| Heliosin (Quercetin 3-digalactoside) \| Hyperoside \| Isoquercitin \| Miquelianin \| Quercetin-3-sophorodide \| Quercitrin \| Rutin \| Spiraeoside

O-Methylated flavonols

Aglycones	5-O-methylmyricetin \| Annulatin \| Ayanin \| Axillarin \| Azaleatin \| Brickellin \| Centaureidin \| Chrysosplenetin \| Combretol \| Ermanin \| Eupatolitin \| Eupalitin \| Europetin \| Isorhamnetin \| Jaceidin \| Kaempferide \| Kumatakenin \| Laricitrin \| Natsudaidain \| Ombuin \| Pachypodol \| Patuletin \| Retusin \| Mearnsetin \| Rhamnazin \| Rhamnetin \| Santin \| Spinacetin \| Syringetin \| Tamarixetin

Glycosides	Azalein \| Centaurein \| Eupalin \| Eupatolin \| Jacein \| Patulitrin \| Tamarixetin 7-rutinoside \| Xanthorhamnin

Derivative flavonols

Aglycones	Noricaritin \| Dihydronoricaritin

Glycosides	Amurensin \| Icariin \| Phelloside \| Dihydrophelloside \| Rutin S

Pyranoflavonols

Aglycones	Karanjachromene

Furanoflavonols

Semisynthetic

Glycosides	Hydroxyethylrutosides (Monoxerutin, Troxerutin)