1,3-Benzenedicarboxylic acid, 4-hydroxy- 4-Hydroxy-1,3-benzenedicarboxylic acid 4-Hydroxy-m-phthalic acid 4-Hydroxybenzene-1,3-dicarboxylic acid 4-Hydroxyisophthalic acid 636-46-4 Eupirina Isophthalic acid, 4-hydroxy- NSC2445