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    <!-- http://purl.obolibrary.org/obo/CHEBI_18344 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_18344">
        <rdfs:label>kynurenic acid</rdfs:label>
        <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/CHEBI_24532"/>
        <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/CHEBI_33575"/>
        <ns4:charge rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</ns4:charge>
        <ns4:monoisotopic_mass rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">189.04259</ns4:monoisotopic_mass>
        <ns4:mass rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">189.17</ns4:mass>
        <oboInOwl:hasDbXref>pubmed:18950711</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:17023091</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>4-hydroxyquinaldic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:15517427</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:19815960</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:12757473</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:15605380</oboInOwl:hasDbXref>
        <oboInOwl:hasOBONamespace>chebi_ontology</oboInOwl:hasOBONamespace>
        <oboInOwl:hasDbXref>pubmed:19816853</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:10881031</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>metacyc.compound:KYNURENATE</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:11244357</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>knapsack:C00026453</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:22915278</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>wikipedia.en:Kynurenic_acid</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>knapsack:C00026494</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>Kynurensaeure</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>kegg.compound:C01717</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:18836681</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:12926536</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>4-Hydroxy-2-quinolinecarboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:14724046</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:16845213</oboInOwl:hasDbXref>
        <ns4:smiles_string>O=C(O)c1cc(O)c2ccccc2n1</ns4:smiles_string>
        <oboInOwl:hasDbXref>pubmed:22814028</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:19523966</oboInOwl:hasDbXref>
        <oboInOwl:id>CHEBI:18344</oboInOwl:id>
        <oboInOwl:hasDbXref>pubmed:8579218</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:18462830</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:22108572</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:15364012</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:9078543</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:18231708</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>Kynurenic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:17959203</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:18346850</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:11051465</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>4-hydroxyquinaldinic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:22065206</oboInOwl:hasDbXref>
        <ns3:IAO_0000115>A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4.</ns3:IAO_0000115>
        <oboInOwl:hasDbXref>reaxys:147451</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:11129102</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:18235993</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>Kynurenate</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>hmdb:HMDB0000715</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:16644124</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>4-Hydroxy-2-chinolincarbonsaeure</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:11452979</oboInOwl:hasDbXref>
        <oboInOwl:hasAlternativeId>CHEBI:14495</oboInOwl:hasAlternativeId>
        <oboInOwl:hasRelatedSynonym>4-hydroxy-2-quinolinecarboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:11982504</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:16088227</oboInOwl:hasDbXref>
        <oboInOwl:hasAlternativeId>CHEBI:20378</oboInOwl:hasAlternativeId>
        <oboInOwl:hasDbXref>pubmed:16388784</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:10088651</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:17573079</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:12503245</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pdb-ccd:KYA</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:8637415</oboInOwl:hasDbXref>
        <ns4:inchi_string>InChI=1S/C10H7NO3/c12-9-5-8(10(13)14)11-7-4-2-1-3-6(7)9/h1-5H,(H,11,12)(H,13,14)</ns4:inchi_string>
        <oboInOwl:hasDbXref>pubmed:14770276</oboInOwl:hasDbXref>
        <ns4:generalized_empirical_formula>C10H7NO3</ns4:generalized_empirical_formula>
        <oboInOwl:hasDbXref>cas:492-27-3</oboInOwl:hasDbXref>
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        <oboInOwl:hasDbXref>pubmed:19616570</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>4-hydroxyquinoline-2-carboxylic acid</oboInOwl:hasExactSynonym>
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        <oboInOwl:hasDbXref>pubmed:16920787</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:22224417</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:11191832</oboInOwl:hasDbXref>
        <ns4:inchi_key_string>HCZHHEIFKROPDY-UHFFFAOYSA-N</ns4:inchi_key_string>
        <oboInOwl:hasDbXref>pubmed:16220290</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:17364732</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:15961072</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:19187269</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:11334243</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:23030614</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:11521749</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>4-hydroxyquinoline-2-carboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>pubmed:22732505</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>lincs.smallmolecule:LSM-24962</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:10867830</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:16416446</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:22770225</oboInOwl:hasDbXref>
        <oboInOwl:hasAlternativeId>CHEBI:1841</oboInOwl:hasAlternativeId>
        <oboInOwl:inSubset rdf:resource="http://purl.obolibrary.org/obo/chebi/3_STAR"/>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_24532 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_24532">
        <rdfs:label>organic heterocyclic compound</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_33575 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_33575">
        <rdfs:label>carboxylic acid</rdfs:label>
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<!-- Generated by the OWL API (version 3.2.4.1806) http://owlapi.sourceforge.net -->



