A profisetinidin is a type of condensed tannins formed from fisetinidin

Fisetinidin

Fisetinidin is an anthocyanidin. It has been obtained from the heartwood of Acacia mearnsii, from the bark of Rhizophora apiculata and can also be synthesized.-Tannins:...

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Mimosa

Mimosa

Mimosa is a genus of about 400 species of herbs and shrubs, in the subfamily Mimosoideae of the legume family Fabaceae. The generic name is derived from the Greek word μιμος , meaning "mimic."...

and quebracho tannins are, according to a comparative ¹³C NMR study of polyflavonoids, found to be predominantly profisetinidin/prorobinetidin-type tannins.

The expected masses found in mass spectrometry in quebracho tannin are 561, 833, 1105, 1377, 1393, 1651, 1667. Quebracho also yields gallic acid

Gallic acid

Gallic acid is a trihydroxybenzoic acid, a type of phenolic acid, a type of organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. The chemical formula is C6H23COOH. Gallic acid is found both free and as part of...

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