Proguibourtinidin
Introduction A '''Proguibourtinidin''' is a type of condensed tannins formed from guibourtinidol (leucoguibourtinidin). They yield guibourtinidin when depolymerized under oxidative conditions.They can be found in ''Guibourtia coleosperma'' (the African rosewood) or in ''Cassia abbreviata''.
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