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... > 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 > 2-hydroxy-4-(4-hydroxyphenyl)butanoic acid

... > chemical entity > molecular entity > polyatomic entity > molecule > organic molecule > organic cyclic compound > organic aromatic compound > phenols > 2-hydroxy-4-(4-hydroxyphenyl)butanoic acid

... > chemical entity > molecular entity > polyatomic entity > molecule > cyclic compound > organic cyclic compound > organic aromatic compound > phenols > 2-hydroxy-4-(4-hydroxyphenyl)butanoic acid