(2,5-Dihydroxyphenyl)acetic acid 2,5-Dihydroxy-alpha-toluic acid 2,5-Dihydroxybenzeneacetic acid 2,5-Dihydroxyphenylacetic acid 4-10-00-01506 (Beilstein Handbook Reference) 451-13-8 Acetic acid, (2,5-dihydroxyphenyl)- Alcapton BRN 2692860 Benzeneacetic acid, 2,5-dihydroxy- EINECS 207-192-7 HOMOGENTISIC ACID Homogentisate acid Homogentisinic acid NSC 88940