rutin

Rutin (rutoside, quercetin-3-O-rutinoside or sophorin) is the glycoside combining the flavonol quercetin and the disaccharide rutinose (α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranose). It is a flavonoid glycoside found in a wide variety of plants, including citrus.

== Occurrences == Rutin is one of the phenolic compounds found in the plant species Carpobrotus edulis. Its name comes from the name of Ruta graveolens, a plant that also contains rutin. Various citrus fruit peels contain 32 to 49 mg per g of flavonoids expressed as rutin equivalents. Citrus leaves contain rutin at concentrations of 11 mg per g in orange trees and 7 mg per g in lime trees. In 2021, Samoan researchers identified rutin in the native plant matalafi (Psychotria insularum).