Gallotannins

3,4,5-trihydroxybenzoic acid

chemical compound

chemical compound

chemical compound

Glucogallin is chemical compound formed from gallic acid and β-D-glucose. It can be found in oaks species like the North American white oak (Quercus alba), European red oak (Quercus robur) and Amla fruit (Phyllanthus emblica).

Pentagalloylglucose, or more specifically '1,2,3,4,6-penta-O-galloyl-β-D-glucose', is the pentagallic acid ester of glucose. It is a gallotannin and the precursor of ellagitannins.

A gallotannin is any of a class of molecules belonging to the hydrolysable tannins. Gallotannins are polymers formed when gallic acid, a polyphenol monomer, esterifies and binds with the hydroxyl group of a polyol carbohydrate such as glucose.

chemical compound

1,2,6-Trigalloylglucose, or more specifically '1,2,6-tri-O-galloyl-β-D-glucose', is a gallotannin found in cell cultures of Cornus officinalis.