ChEBI: Gallocatechin is a catechin that is a flavan substituted by hydroxy groups at positions 3, 3', 4', 5, 5' and 7 (the trans isomer). It is isolated from Acacia mearnsii. It has a role as a metabolite. It is a catechin and a flavan-3,3',4',5,5',7-hexol.