1,4-Benzenedicarboxylic acid, 2,5-dihydroxy-, diethyl ester 2,5-Dihydroxyterephthalic acid diethyl ester 5870-38-2 Diethyl 2,5-dihydroxyterephthalate NSC177975 Terephthalic acid, 2,5-dihydroxy-, diethyl ester