Synonyms: b-D-Glucopyranose, cyclic 4®2':6®2-[4-(6-carboxy-2,3,4-trihydroxyphenoxy)-4',5,5',6,6'-pentahydroxy[1,1'-biphenyl]-2,2'-dicarboxylate]1,2,3-tris(3,4,5-trihydroxybenzoate), (S)-;Dibenzo[g,i]pyrano[3,2-b][1,5]dioxacycloundecin, b-D-glucopyranose deriv.; Rugosin A; Rugosin A (tannin)