Proanthocyanidin B8
Encyclopedia
Proanthocyanidin B8 is a B type proanthocyanidin
B type proanthocyanidin
B type proanthocyanidins are a specific type of proanthocyanidin, which are a class of flavanoids. They are oligomers of flavan-3-ols.-Dimeric B type proanthoanthocyanidins :...

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Proanthocyanidin B8 is a catechin
Catechin
Catechin is a natural phenol antioxidant plant secondary metabolite. The term catechins is also commonly used to refer to the related family of flavonoids and the subgroup flavan-3-ols ....

-(4α→6)-epicatechin dimer. It can be found in grape seeds and in beer.
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