1,3-Benzenedicarboxylic acid, 4-hydroxy-, dimethyl ester 4-Hydroxyisophthalic acid dimethyl ester 5985-24-0 Dimethyl 4-hydroxyisophthalate EINECS 227-803-0 Isophthalic acid, 4-hydroxy-, dimethyl ester (8CI) NSC 109108