2-{[(2E)-3-(3,4-dihydroxyphenyl)-1-hydroxyprop-2-en-1-ylidene]amino}-5-hydroxybenzoic acid is an alkaloid and a member of benzamides.

Pratensein as a novel transcriptional up-regulator of scavenger receptor class B type I in HepG2 cells. Pratensein has anti-inflammatory activity, it has robust activation of acetylcholinesterase expression, the induction of acetylcholinesterase included the levels of mRNA, protein and enzymatic activity; it can significantly ameliorate Aβ1-42-induced spatial learning and memory impairment through reducing neuroinflammation via inhibition of glial activation and NF-κB activation, and restoring synapse and BDNF levels. Pratensein is a member of the class of 7-hydroxyisoflavones in which isoflavone is substituted by hydroxy groups at the 5, 7, and 3' positions, and by a methoxy group at the 4' position. It is a member of 4'-methoxyisoflavones and a member of 7-hydroxyisoflavones. It is a conjugate acid of a pratensein(1-).

1,2-Disinapoylgentiobiose is a glycoside. It is functionally related to a hydroxycinnamic acid.

5,6,7,4'-tetrahydroxyflavonol-3-O-rutinoside is a glycosyloxyflavone that is 3,5,6,7,4'-pentahydroxyflavonol substituted by a rutinosyl group at position 3 via a glycosidic linkage. Isolated from Daphniphyllum calycinum, it exhibits antioxidant activity. It has a role as a metabolite and a radical scavenger. It is a rutinoside, a tetrahydroxyflavone, a glycosyloxyflavone and a disaccharide derivative. 6-Hydroxykaempferol is a competitive inhibitor of tyrosinase compared to L-DOPA, it shows also high antioxidant activities.

Quercetin dihydrate loaded electrospun nanofibrous membrane show antimycotic effect on candida albicans. Clinoptilolite modified with quercetin dihydrate has shown better cytotoxicity compared with clinoptilolite modified with quercetin. The supplementation of quercetin dihydrate and gallate promotes an increase in fecal sterols, which in turn leads to a decreased absorption of dietary cholesterol as well as lower plasma and hepatic cholesterol.

Kaempferol 3-O-arabinoside is a glycoside and a member of flavonoids.