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Quercetin
CAS number: 117-39-5
Quercetin is a pentahydroxyflavone having the five hydroxy groups placed at the 3-, 3'-, 4'-, 5- and 7-positions. It is one of the most abundant flavonoids in edible vegetables, fruit and wine.

Related images

Competition curves of naltrexone (◼) and compounds 8 (△), 9 (▼), 10 (+), 12 (▲), 15 (◇), 31 (○) and 32 (●) for [3H]-DAMGO binding to Wistar rat forebrain membranes.
Competition curves of naltrexone (◼) and compounds 8 (△), 9 (▼), 10 (+), 12 (▲), 15 (◇), 31 (○) and 32 (●) for [3H]-DAMGO binding to Wistar rat forebrain membranes.
DOI: /10.1016/j.neuropharm.2013.04.020
TLC analysis of transglycosylation reaction using α-glucosyl fluoride (1) and quercetin (2a) as the substrate at different pH.
TLC analysis of transglycosylation reaction using α-glucosyl fluoride (1) and quercetin (2a) as the substrate at different pH.
DOI: /10.1016/j.bioorg.2020.104581

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Related Questions and Answers

Q: What are the key chemical constituents identified in the flavonoid extract of Senecio scandens (SSF), and how were they analyzed?
A: Twenty flavonoids were identified in SSF using UHPLC/Q-Orbitrap/HRMS, with six prototype compounds (quercetin-3β-D-glucoside, rutin, kaempferol, kaempferol-3-O-rutinoside, quercetin, and afzelin) detected in the blood. The total flavonoid content was quantified spectrophotometrically at 510 nm using rutin as a standard.