the world > matter > chemistry > organic chemistry > other substances > [noun] > substances in bark
tan1806
fraxetin1864
fraxin1864
viburnin1886
sapotoxin1891
yohimbenine1897
1886 A. H. BuckRef. Handbk. Med. Sci. III. 509/2 The bark [of Viburnum prunifolium] is said to contain viburnin, valerianic, oxalic, citric, and malic acids, besides other ingredients.