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ho·mo·gen·tis·ic ac·id(hō'mō-jen-tis'ik as'id),
Glycosuric acid; (2,5-dihydroxyphenyl)acetic acid; an intermediate in l-phenylalanine and l-tyrosine catabolism; if made alkaline, it oxidizes rapidly in air to a quinone that polymerizes to a melaninlike material; elevated levels are observed in patients with alcaptonuria.
ho·mo·gen·tis·ic ac·id(hō'mō-jen-tis'ik as'id)
alkapton, alcapton (al-kap′ton) [ al(kali) + Gr. kaptein, to gulp]
C8H8O4; homogentisic acid; a yellowish-red substance sometimes occurring in urine as the result of the incomplete oxidation of tyrosine and phenylalanine.