Article · Wikipedia archive · Last revised Aug 10, 2026

Syringetin

Syringetin is an O-methylated flavonol, a type of flavonoid. It is found in red grape, in Lysimachia congestiflora and in Vaccinium uliginosum. It is one of the phenolic compounds present in wine.

Last revised
Aug 10, 2026
Read time
≈ 2 min
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Citations
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Wikipedia ↗
Syringetin
Chemical structure of syringetin
Chemical structure of syringetin source ↗
Names
IUPAC name
3,4′,5,7-Tetrahydroxy-3′,5′-dimethoxyflavone
Systematic IUPAC name
3,5,7-Trihydroxy-2-(4-hydroxy-3,5-dimethoxyphenyl)-4H-1-benzopyran-4-one
Other names
3′,5′-O-Dimethylmyricetin
3′,5′-Dimethoxy-3,5,7,4′-tetrahydroxyflavone
3,5,7,4′-Tetrahydroxy-3′,5′-dimethoxyflavone
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
UNII
  • InChI=1S/C17H14O8/c1-23-11-3-7(4-12(24-2)14(11)20)17-16(22)15(21)13-9(19)5-8(18)6-10(13)25-17/h3-6,18-20,22H,1-2H3 X markN
    Key: UZMAPBJVXOGOFT-UHFFFAOYSA-N X markN
  • InChI=1/C17H14O8/c1-23-11-3-7(4-12(24-2)14(11)20)17-16(22)15(21)13-9(19)5-8(18)6-10(13)25-17/h3-6,18-20,22H,1-2H3
    Key: UZMAPBJVXOGOFT-UHFFFAOYAJ
  • COc1cc(cc(OC)c1O)C=3Oc2cc(O)cc(O)c2C(=O)C=3O
Properties
C17H14O8
Molar mass 346.291 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Syringetin is an O-methylated flavonol, a type of flavonoid. It is found in red grape (absent in white grape),1 in Lysimachia congestiflora2 and in Vaccinium uliginosum (bog bilberries).3 It is one of the phenolic compounds present in wine.4

It induces human osteoblast differentiation through bone morphogenetic protein-2/extracellular signal-regulated kinase 1/2 pathway.4

Metabolism

Syringetin is formed from laricitrin by the action of the enzyme laricitrin 5′-O-methyltransferase15 (myricetin O-methyltransferase).6

Glycosides

  • Syringetin-3-O-galactoside17
  • Syringetin-3-O-glucoside89
  • Syringetin 3-rhamnoside (CAS number 93126-00-2)
  • Syringetin-3-O-rutinoside9 found in Larix sibirica10
  • Syringetin 3-O-(6′′-acetyl)-β-glucopyranoside found in Picea abies (Norway spruce)11
References

References

  1. Mattivi, Fulvio; Guzzon, Raffaele; Vrhovsek, Urska; Stefanini, Marco; Velasco, Riccardo (2006). "Metabolite profiling of grape: Flavonols and anthocyanins". Journal of Agricultural and Food Chemistry. 54 (20): 7692–7702. Bibcode:2006JAFC...54.7692M. doi:10.1021/jf061538c. PMID 17002441. S2CID 21407928.
  2. Guo, Jian; Yu, Dong-Lei; Xu, Lizhen; Zhu, Min; Yang, Shi-Lin (1998). "Flavonol glycosides from Lysimachia congestiflora". Phytochemistry. 48 (8): 1445–1447. Bibcode:1998PChem..48.1445G. doi:10.1016/s0031-9422(97)01025-x. S2CID 85252109.
  3. Lätti, Anja K.; Jaakola, Laura; Riihinen, Kaisu R.; Kainulainen, Pirjo S. (2010). "Anthocyanin and flavonol variation in bog bilberries (Vaccinium uliginosum L.) in Finland". Journal of Agricultural and Food Chemistry. 58 (1): 427–433. Bibcode:2010JAFC...58..427L. doi:10.1021/jf903033m. PMID 20000402. S2CID 28304488.
  4. Hsu, Ya-Ling; Liang, Hsin-Lin; Hung, Chih-Hsing; Kuo, Po-Lin (2009). "Syringetin, a flavonoid derivative in grape and wine, induces human osteoblast differentiation through bone morphogenetic protein-2/extracellular signal-regulated kinase 1/2 pathway". Molecular Nutrition & Food Research. 53 (11): 1452–1461. doi:10.1002/mnfr.200800483. PMID 19784998. S2CID 42240173.
  5. "Laricitrin 5′-O-methyltransferase activity". AmiGO 2. Gene Ontology Consortium. 2009-02-28. Retrieved 2021-04-04.
  6. Foerster, Hartmut (2006-11-03). "MetaCyc pathway: Syringetin biosynthesis". MetaCyc. SRI International. Retrieved 2021-04-04.
  7. Matsuda, F.; Suzuki, M.; Sawada, Y. (2016-01-19). "Syringetin-3-O-galactoside; LC-ESI-QTOF; MS2; CE:Ramp 5-60 V; [M+H]+". MassBank. Retrieved 2021-04-04.
  8. Tohge, T. (2016-01-19). "Syringetin-3-O-glucoside; LC-ESI-QTOF; MS". MassBank. Retrieved 2021-04-04.
  9. Slimestad, Rune; Hostettmann, Kurt (1996). "Characterisation of phenolic constituents from juvenile and mature needles of Norway spruce by means of high performance liquid chromatography–mass spectrometry". Phytochemical Analysis. 7 (1): 42–48. Bibcode:1996PChAn...7...42S. doi:10.1002/(SICI)1099-1565(199601)7:1<42::AID-PCA282>3.0.CO;2-K. S2CID 95953333.
  10. Tyukavkina, N. A.; Medvedeva, S. A.; Ivanova, S. Z. (1974). "New flavonol glycosides from the needles of Larix sibirica". Chemistry of Natural Compounds. 10 (2): 170–172. Bibcode:1974CNatC..10..170T. doi:10.1007/BF00563605. S2CID 4819832.
  11. Slimestad, Rune; Andersen, Øyvind M.; Francis, George W.; Marston, Andrew; Hostettmann, Kurt (1995). "Syringetin 3-O-(6′′-acetyl)-β-glucopyranoside and other flavonols from needles of Norway spruce, Picea abies". Phytochemistry. 40 (5): 1537–1542. doi:10.1016/0031-9422(95)00383-I. S2CID 84506810.