2-(3,6-DIHYDROXYPHENYL)ACETIC ACID2,5-Dihydroxyphenylacetic acidHOMOGENTISIC ACID FREE ACIDHomogentisic acid2,5-DIHYDROXYPHENYLACETIC ACID (LACTONE)2,5-二羟基苯乙酸尿黑酸Homogentisic acidMelanic acidAlcapton2,5-Dihydroxy-α-toluic AcidNSC 88940Homogentisinic Acid2,5-Dihydroxybenzeneacetic AcidHomogentisic acid2,5-Dihydroxyphenylacetic acid2-(3,6-DIHYDROXYPHENYL)ACETIC ACIDHomogentisic acidhomogentisic acid2,5-Dihydroxyphenylacetic acid