dimethyl 4,6-dihydroxy-1,3-benzenedicarboxylate;4,6-Dihydroxy-isophthalic acid dimethyl ester;Dimethyl 2,4-dihydroxybenzene-1,5-dicarboxylate;4,6-Dihydroxy-isophthalsaeure-dimethylester;4,6-dihydroxy-isophtalic acid dimethyl ester;