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    <!-- http://purl.obolibrary.org/obo/CHEBI_15940 -->

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        <rdfs:label>nicotinic acid</rdfs:label>
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        <oboInOwl:hasRelatedSynonym>nicotinic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:16400392</oboInOwl:hasDbXref>
        <oboInOwl:id>CHEBI:15940</oboInOwl:id>
        <oboInOwl:hasDbXref>Gmelin:3340</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:25040591</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:699281</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>LINCS:LSM-4676</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:18037924</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:19779335</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>acide nicotinique</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:19678716</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>vitamin B3</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>Chemspider:913</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:8423912</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:16018787</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:18996527</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:24975217</oboInOwl:hasDbXref>
        <ns5:inchi>InChI=1S/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9)</ns5:inchi>
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        <ns5:monoisotopicmass>123.03203</ns5:monoisotopicmass>
        <oboInOwl:hasRelatedSynonym>Niacin</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:22116693</oboInOwl:hasDbXref>
        <ns5:smiles>OC(=O)c1cccnc1</ns5:smiles>
        <oboInOwl:hasRelatedSynonym>3-carboxylpyridine</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PDBeChem:NIO</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:34085526</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:24675661</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>NICOTINIC ACID</oboInOwl:hasExactSynonym>
        <oboInOwl:hasDbXref>CAS:59-67-6</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>3-Pyridylcarboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>AGR:IND607088605</oboInOwl:hasDbXref>
        <ns5:mass>123.10944</ns5:mass>
        <oboInOwl:hasDbXref>HMDB:HMDB0001488</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:4259917</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:33273654</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>3-pyridinecarboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasRelatedSynonym>Nicotinsaure</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:22366213</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:19369827</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>Beilstein:109591</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:24029555</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:16767301</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:7217784</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:186078</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:15183629</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:21632263</oboInOwl:hasDbXref>
        <oboInOwl:hasAlternativeId>CHEBI:7559</oboInOwl:hasAlternativeId>
        <oboInOwl:hasRelatedSynonym>Niaspan</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasRelatedSynonym>acidum nicotinicum</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>KNApSAcK:C00000208</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>PP factor</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:7581845</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:10540864</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:582105</oboInOwl:hasDbXref>
        <ns5:inchikey>PVNIIMVLHYAWGP-UHFFFAOYSA-N</ns5:inchikey>
        <oboInOwl:hasDbXref>PMID:16945375</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>3-carboxypyridine</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasRelatedSynonym>m-pyridinecarboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>KEGG:D00049</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>Drug_Central:2835</oboInOwl:hasDbXref>
        <oboInOwl:hasAlternativeId>CHEBI:44319</oboInOwl:hasAlternativeId>
        <oboInOwl:hasDbXref>PMID:32954525</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:22458880</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:16322787</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:22770225</oboInOwl:hasDbXref>
        <ns5:formula>C6H5NO2</ns5:formula>
        <oboInOwl:hasDbXref>PMID:16172771</oboInOwl:hasDbXref>
        <ns5:charge>0</ns5:charge>
        <oboInOwl:hasRelatedSynonym>pellagra preventive factor</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:8679452</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>Reaxys:109591</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:14550884</oboInOwl:hasDbXref>
        <oboInOwl:hasAlternativeId>CHEBI:25538</oboInOwl:hasAlternativeId>
        <oboInOwl:hasDbXref>PMID:15311728</oboInOwl:hasDbXref>
        <ns3:IAO_0000115>A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group.</ns3:IAO_0000115>
        <oboInOwl:hasDbXref>PMID:34066686</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>FooDB:FDB001014</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>pyridine-carboxylique-3</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>MetaCyc:NIACINE</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:20979384</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:24848081</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>nicotinic acid</oboInOwl:hasExactSynonym>
        <oboInOwl:hasDbXref>PMID:135660</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>Nikotinsaeure</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:15205990</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:12789870</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:22155410</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>Wikipedia:Niacin</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:22229411</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>pyridine-beta-carboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>KEGG:C00253</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>Nicotinic acid</oboInOwl:hasExactSynonym>
        <oboInOwl:hasRelatedSynonym>anti-pellagra vitamin</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:15627518</oboInOwl:hasDbXref>
        <oboInOwl:hasOBONamespace>chebi_ontology</oboInOwl:hasOBONamespace>
        <oboInOwl:hasRelatedSynonym>beta-pyridinecarboxylic acid</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:15037193</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:16449845</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:19592242</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>DrugBank:DB00627</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:25241762</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:16877271</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:25429652</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>acido nicotinico</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:12563315</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:33932650</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:182198</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:113218</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:34117670</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:4033386</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:18993152</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>pyridine-3-carboxylic acid</oboInOwl:hasExactSynonym>
        <oboInOwl:hasRelatedSynonym>P.P. factor</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:15651982</oboInOwl:hasDbXref>
        <oboInOwl:hasRelatedSynonym>Niacor</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>PMID:24568240</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>PMID:8306147</oboInOwl:hasDbXref>
        <ns3:IAO_0000118 xml:lang="en">niacin</ns3:IAO_0000118>
        <oboInOwl:hasRelatedSynonym xml:lang="en">niacin (b3)</oboInOwl:hasRelatedSynonym>
        <ns3:IAO_0000118 xml:lang="en">nicotinic acid</ns3:IAO_0000118>
        <ns3:IAO_0000412 rdf:resource="http://langual.org"/>
        <oboInOwl:inSubset rdf:resource="http://purl.oboInOwllibrary.org/oboInOwl/chebi#3_STAR"/>
        <ns3:IAO_0000412 rdf:resource="http://purl.obolibrary.org/obo/cdno.owl"/>
        <ns3:IAO_0000412 rdf:resource="http://purl.obolibrary.org/obo/chebi.owl"/>
        <oboInOwl:inSubset rdf:resource="http://purl.obolibrary.org/obo/chebi#3_STAR"/>
        <oboInOwl:hasDbXref rdf:resource="http://www.langual.org/langual_thesaurus.asp?termid=B3757"/>
        <oboInOwl:hasDbXref rdf:resource="http://www.langual.org/langual_thesaurus.asp?termid=B3772"/>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_176839 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_176839">
        <rdfs:label rdf:datatype="http://www.w3.org/XML/1998/namespacestring">vitamin B3</rdfs:label>
        <rdfs:label>vitamin B3</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_26416 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_26416">
        <rdfs:label>pyridine alkaloid</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_26420 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_26420">
        <rdfs:label>pyridinemonocarboxylic acid</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_32544 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_32544">
        <rdfs:label>nicotinate</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_35620 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_35620">
        <rdfs:label>vasodilator agent</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_35679 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_35679">
        <rdfs:label>antilipemic drug</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_50247 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_50247">
        <rdfs:label>antidote</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_75771 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_75771">
        <rdfs:label>mouse metabolite</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_76924 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_76924">
        <rdfs:label>plant metabolite</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_76971 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_76971">
        <rdfs:label>Escherichia coli metabolite</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_84087 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_84087">
        <rdfs:label>human urinary metabolite</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CHEBI_84264 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_84264">
        <rdfs:label>EC 3.5.1.19 (nicotinamidase) inhibitor</rdfs:label>
    </Class>
</rdf:RDF>



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