84744-48-9 Rugosin A beta-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)-