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

    <Class rdf:about="http://purl.obolibrary.org/obo/CHEBI_24532">
        <rdfs:label>organic heterocyclic compound</rdfs:label>
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        <rdfs:label>phosphate</rdfs:label>
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    <!-- http://purl.obolibrary.org/obo/CHEBI_28568 -->

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        <rdfs:label>piperazine</rdfs:label>
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        <oboInOwl:hasRelatedSynonym>1,4-diethylenediamine</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasAlternativeId>CHEBI:8235</oboInOwl:hasAlternativeId>
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        <oboInOwl:hasDbXref>kegg.drug:D00807</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>KEGG COMPOUND:C07973</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:9265850</oboInOwl:hasDbXref>
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        <oboInOwl:hasDbXref>pubmed:28842264</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>reaxys:102555</oboInOwl:hasDbXref>
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        <oboInOwl:hasDbXref>Beilstein:102555</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>NIST Chemistry WebBook:110-85-0</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pdb-ccd:PZE</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>SNOMEDCT:373220002</oboInOwl:hasDbXref>
        <ns4:smiles_string>C1CNCCN1</ns4:smiles_string>
        <oboInOwl:hasRelatedSynonym>Vermizine (TN)</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasDbXref>kegg.drug:D02145</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>kegg.compound:C07973</oboInOwl:hasDbXref>
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        <oboInOwl:hasExactSynonym>Piperazine</oboInOwl:hasExactSynonym>
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        <oboInOwl:hasDbXref>pubmed:33336346</oboInOwl:hasDbXref>
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        <ns3:IAO_0000115>An azacycloalkane that consists of a six-membered ring containing two nitrogen atoms at opposite positions.</ns3:IAO_0000115>
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        <oboInOwl:hasDbXref>pubmed:15017096</oboInOwl:hasDbXref>
        <oboInOwl:id>CHEBI:28568</oboInOwl:id>
        <oboInOwl:hasAlternativeId>CHEBI:26143</oboInOwl:hasAlternativeId>
        <oboInOwl:hasRelatedSynonym>1,4-diazacyclohexane</oboInOwl:hasRelatedSynonym>
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        <oboInOwl:hasDbXref>NCIt:C61892</oboInOwl:hasDbXref>
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    <!-- http://purl.obolibrary.org/obo/CHEBI_37622 -->

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