carboxylic acid phenols homovanillic acid 0 182.05791 182.175 chebi_ontology kegg.compound:C05582 pubmed:24423636 4-Hydroxy-3-methoxybenzeneacetic acid CHEBI:545959 pubmed:24416192 wikipedia.en:Homovanillic_acid cas:306-08-1 Vanillacetic acid 2-(4-hydroxy-3-methoxyphenyl)acetic acid CHEBI:5758 3-Methoxy-4-hydroxyphenylacetic acid pubmed:14688447 hmdb:HMDB0000118 COc1cc(CC(=O)O)ccc1O Homovanillic acid A monocarboxylic acid that is the 3-<em>O</em>-methyl ether of (3,4-dihydroxyphenyl)acetic acid. It is a catecholamine metabolite. reaxys:2213447 QRMZSPFSDQBLIX-UHFFFAOYSA-N 2-(4-hydroxy-3-methoxyphenyl)acetic acid C9H10O4 pubmed:8353435 metacyc.compound:CPD-7651 (4-hydroxy-3-methoxyphenyl)acetic acid HVA knapsack:C00029504 pubmed:24007816 3-Methoxy-4-hydroxyphenylacetate InChI=1S/C9H10O4/c1-13-8-4-6(5-9(11)12)2-3-7(8)10/h2-4,10H,5H2,1H3,(H,11,12) acid