Leaves:
Tannins, composed mainly of gallotannins with some condensed catechins
and proanthocyanin.
Miscellaneous; flavonoids; quercitin, kaempferol, astragalin, myricitrin,
volatile oil containing hexenol, n-hexen-2-al, a- and b-ionones.
Bark:
Tannins, mainly the a-, b-and g- hamamelitannins, with some condensed
tannins such as d-gallocatechin, l-epigallocatechin and l-epicatechin
Miscellaneous; saponins, volatile oil, resin.
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