1,6-Digalloylglucose, or more specifically 1,6-di-O-galloyl-β-D-glucose, is a gallotannin. It can be found in some oak species.
Biosynthesis The enzyme beta-glucogallin O-galloyltransferase, characterised from oak, produces 1,6-digalloylglucose from two units of glucogallin:
1,6-digalloylglucose can then be converted into 1,2,6-trigalloylglucose, another gallotannin.
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