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... > chemical entity > molecular entity > main group molecular entity > s-block molecular entity > hydrogen molecular entity > hydroxides > organic hydroxy compound > phenols > benzenediols > catechols > 5-(3,4-dihydroxyphenyl)-4-oxopentanoic acid

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > hydroxides > organic hydroxy compound > phenols > benzenediols > catechols > 5-(3,4-dihydroxyphenyl)-4-oxopentanoic acid

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > aromatic compound > organic aromatic compound > phenols > benzenediols > catechols > 5-(3,4-dihydroxyphenyl)-4-oxopentanoic acid

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic molecule > organic cyclic compound > organic aromatic compound > phenols > benzenediols > catechols > 5-(3,4-dihydroxyphenyl)-4-oxopentanoic acid

... > chemical entity > molecular entity > polyatomic entity > molecule > organic molecule > organic cyclic compound > organic aromatic compound > phenols > benzenediols > catechols > 5-(3,4-dihydroxyphenyl)-4-oxopentanoic acid

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > organic cyclic compound > organic aromatic compound > phenols > benzenediols > catechols > 5-(3,4-dihydroxyphenyl)-4-oxopentanoic acid