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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:homogentisic acid
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Accession:CHEBI:44747 term browser browse the term
Definition:A dihydroxyphenylacetic acid having the two hydroxy substituents at the 2- and 5-positions.
Synonyms:related_synonym: (2,5-dihydroxyphenyl)-Acetic acid;   2,5-Dihydroxyphenylacetic acid;   2-(3,6-DIHYDROXYPHENYL)ACETIC ACID;   Formula=C8H8O4;   InChI=1S/C8H8O4/c9-6-1-2-7(10)5(3-6)4-8(11)12/h1-3,9-10H,4H2,(H,11,12);   InChIKey=IGMNYECMUMZDDF-UHFFFAOYSA-N;   SMILES=OC(=O)Cc1cc(O)ccc1O
 alt_id: CHEBI:44744;   CHEBI:5755
 xref: Beilstein:2692860;   CAS:451-13-8;   DrugBank:DB08327;   HMDB:HMDB0000130;   KEGG:C00544;   KNApSAcK:C00007309;   PDBeChem:OMD;   PMID:16196135;   PMID:19919097;   PMID:22850426;   PMID:23486607;   PMID:23511227;   PMID:23879342;   PMID:24373924;   Reaxys:2692860;   Wikipedia:Homogentisic_acid
 cyclic_relationship: is_conjugate_acid_of CHEBI:16169

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19785
    role 19732
      biological role 19732
        poison 18059
          toxin 13938
            phenylacetic acid 1151
              homogentisic acid 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19785
    subatomic particle 19782
      composite particle 19782
        hadron 19782
          baryon 19782
            nucleon 19782
              atomic nucleus 19782
                atom 19782
                  main group element atom 19670
                    p-block element atom 19670
                      carbon group element atom 19572
                        carbon atom 19561
                          organic molecular entity 19561
                            organic group 18493
                              organic divalent group 18486
                                organodiyl group 18486
                                  carbonyl group 18389
                                    carbonyl compound 18389
                                      carboxylic acid 18060
                                        hydroxy carboxylic acid 3602
                                          hydroxy monocarboxylic acid 3602
                                            dihydroxy monocarboxylic acid 256
                                              dihydroxyphenylacetic acid 19
                                                homogentisic acid 0
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