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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.

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Accession:CHEBI:51763 term browser browse the term
Definition:A dicarboxylic acid diamide resulting from the formal condensation of both of the carboxy groups of butynedioic acid with ammonia. An antibacterial agent produced by Streptomyces chibaensis.
Synonyms:exact_synonym: but-2-ynediamide
 related_synonym: 2-butynediamide;   Acetylendicarbonsaeureamid;   Acetylene dicarboxamide;   Acetylenedicarboxamide;   Acetylenedicarboxylic acid diamide;   Aquamycin;   Formula=C4H4N2O2;   InChI=1S/C4H4N2O2/c5-3(7)1-2-4(6)8/h(H2,5,7)(H2,6,8);   InChIKey=JBTGHKUTYAMZEZ-UHFFFAOYSA-N;   Lenamycin;   Renamycin;   SMILES=NC(=O)C#CC(N)=O
 xref: Beilstein:1756134;   CAS:543-21-5;   KNApSAcK:C00018677;   PMID:13563326;   PMID:13563327;   PMID:4736298;   PMID:711614;   Pesticides:cellocidin;   Reaxys:1756134;   Wikipedia:Cellocidin

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  CHEBI ontology 19853
    role 19804
      application 19477
        pesticide 16593
          cellocidin 0
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  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    p-block element atom 19744
                      carbon group element atom 19650
                        carbon atom 19639
                          organic molecular entity 19639
                            organic group 18550
                              organic divalent group 18541
                                organodiyl group 18541
                                  carbonyl group 18447
                                    carbonyl compound 18447
                                      carboxylic acid 18125
                                        carboacyl group 17383
                                          univalent carboacyl group 17383
                                            carbamoyl group 17166
                                              carboxamide 17166
                                                dicarboxylic acid amide 3113
                                                  dicarboxylic acid diamide 2663
                                                    cellocidin 0
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