Woolly aerva, Polpala (Aerva lanata): Benefits, Dosage, Side Effects & Research

Kaempferol is a tetrahydroxyflavone in which the four hydroxy groups are located at positions 3, 5, 7 and 4'. Acting as an antioxidant by reducing oxidative stress, it is currently under consideration as a possible cancer treatment. It has a role as a geroprotector, an antibacterial agent, a plant metabolite, a human xenobiotic metabolite, a human urinary metabolite and a human blood serum metabolite. It is a member of flavonols, a tetrahydroxyflavone and a 7-hydroxyflavonol. It is a conjugate acid of a kaempferol oxoanion.

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. It has a role as a geroprotector, an antioxidant, an antibacterial agent, an antineoplastic agent, a protein kinase inhibitor, a chelator, a radical scavenger, an Aurora kinase inhibitor, a plant metabolite, a phytoestrogen and an EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor. It is a pentahydroxyflavone and a 7-hydroxyflavonol. It is a conjugate acid of a quercetin-7-olate.