Flavonoid rhamnosides

Engeletin is a flavanonol rhamnoside, a phenolic compound found in wine and isolated from the bark of Hymenaea martiana.

Astilbin is a flavanonol, a type of flavonoid. Astilbin is the (2R-trans)-isomer; neoisoastilbin is the (2S-cis)-isomer and isoastilbin is the (2R-cis)-isomer.

Afzelin is a flavonol glycoside. It is the rhamnoside of kaempferol. It is found in Nymphaea odorata.

Smitilbin is a flavanonol, a type of flavonoid. It is a rhamnoside that can be isolated in Smilax glabra (Chinaroot, sarsaparilla).