Any of a group of astringent polyphenolic vegetable principles or compounds, chiefly complex glucosides of catechol and pyrogallol.
| Member | Definition | Role |
|---|
| 2,2',3,3',4,4'-hexahydroxy-1,1'-biphenyl-6,6'-dimethanol dimethyl ether | | 5-(methoxymethyl)-4-[2,3,4-trihydroxy-6-(methoxymethyl)phenyl]benzene-1,2,3-triol |
| 3,3',4-o-trimethylellagic acid | | 3,4,3'-Tri-O-methylellagic acid |
| 4-(alpha-rhamnopyranosyl)ellagic acid | | Ellagic acid deoxyhexoside |
| agrimoniin | A dimeric hydrolysable tannin in which 2 moles of potentillin monomer are linked via a dehydrogalloyl group; an antitumor tannin of Agrimonia pilosa Ledeb., which induces interleukin-1. | agrimoniin |
| casuarictin | | Casuarictin |
| casuarinin | | Casuarinin |
| Chebulagic acid | | Chebulagic acid |
| chlorogenic acid | A cinnamate ester obtained by formal condensation of the carboxy group of trans-caffeic acid with the 3-hydroxy group of quinic acid. It is an intermediate metabolite in the biosynthesis of lignin. | chlorogenic acid |
| Geraniin | | Geraniin |
| granatin b | | Granatin B |
| kadsurin | | Kadsurin, (-)- |
| Pedunculagin | | Pedunculagin |
| punicalagin | | Punicalagin |
| punicalin | | Punicalin |
| rubschisandrin | | Gomisin L1 methyl ether |
| schisantherin a | | Schisantherin A |
| schisantherin b | | Gomisin B |
| schizandrin b | | (+)-schisandrin B; Deoxygomisin A |
| schizandrin c | | Wuweizisu C |
| schizandrol b | | Besigomsin |
| tannins | | Chinese gallotannin |
| tellimagrandin i | | Tellimagrandin I |
| thonningianin a | | Thonningianin A |