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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.

Term:nitro group
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Accession:CHEBI:29785 term browser browse the term
Synonyms:exact_synonym: nitro
 related_synonym: -NO2;   Formula=NO2;   SMILES=*[N+](=O)[O-]

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Your selection has 11135 annotated objects. The maximum number of objects that can be shown is 2000. The list is too large to display.

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  • Term paths to the root
    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19904
        chemical entity 19902
          group 19861
            inorganic group 19440
              nitro group 11135
                nitro compound + 11135
    Path 2
    Term Annotations click to browse term
      CHEBI ontology 19904
        subatomic particle 19902
          composite particle 19902
            hadron 19902
              baryon 19902
                nucleon 19902
                  atomic nucleus 19902
                    atom 19902
                      group 19861
                        nitrogen group 12304
                          nitro group 11135
                            nitro compound + 11135
    paths to the root