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    <!-- http://purl.obolibrary.org/obo/CHEBI_16199 -->

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        <rdfs:label>urea</rdfs:label>
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        <oboInOwl:hasDbXref>gmelin:1378</oboInOwl:hasDbXref>
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        <oboInOwl:hasRelatedSynonym>uree</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasRelatedSynonym>Carbamide</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasRelatedSynonym>E927b</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasRelatedSynonym>urea</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasAlternativeId>CHEBI:9888</oboInOwl:hasAlternativeId>
        <oboInOwl:hasDbXref>ymdb:YMDB00003</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>drugbank:DB03904</oboInOwl:hasDbXref>
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        <oboInOwl:hasRelatedSynonym>ur</oboInOwl:hasRelatedSynonym>
        <oboInOwl:hasAlternativeId>CHEBI:15292</oboInOwl:hasAlternativeId>
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        <ns4:smiles_string>NC(N)=O</ns4:smiles_string>
        <oboInOwl:hasDbXref>wikipedia.en:Urea</oboInOwl:hasDbXref>
        <ns3:IAO_0000115>A carbonyl group with two C-bound amine groups. The commercially available fertilizer has an analysis of 46-0-0 (N-P2O5-K2O).</ns3:IAO_0000115>
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    <!-- http://purl.obolibrary.org/obo/CHEBI_37622 -->

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