Pinocembrin is an antioxidant found in honey. Pinocembrin can only be ingested by consuming honey, but it is also found in propolis, a glue-like sustance produced by bees. Propolis is commonly used by bees to seal cracks found in the beehive.
Pinocembrin, like other flavonoids , is a powerful antioxidant obtained from plant sources. Pinocembrin enters honey through the pollen grains and nectar that bees collect from flowers and utilize to make honey.
Structure and Chemical Properties
Molecular weight information at: http://www.chemexper.com/
Flavanoids in Honey: http://www.chemsoc.org/ExemplarChem/entries/2001/loveridge/honeyflavonoids.gif