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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:33467 term browser browse the term
Definition:A monoatomic phosphorus that has formula P.
Synonyms:exact_synonym: phosphorus(1+) ion;   phosphorus(I) cation
 related_synonym: Formula=P;   InChI=1S/P/q+1;   InChIKey=FTFMSLKBXSATDG-UHFFFAOYSA-N;   P;   SMILES=[P+];   phosphorus cation
 xref: CAS:16427-80-8;   Gmelin:15200

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19821
    chemical entity 19821
      molecular entity 19819
        elemental molecular entity 16306
          monoatomic entity 15180
            monoatomic phosphorus 77
              phosphorus(1+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19821
    subatomic particle 19819
      composite particle 19819
        hadron 19819
          baryon 19819
            nucleon 19819
              atomic nucleus 19819
                atom 19819
                  main group element atom 19716
                    p-block element atom 19716
                      p-block molecular entity 19716
                        pnictogen molecular entity 18845
                          phosphorus molecular entity 10126
                            elemental phosphorus 77
                              monoatomic phosphorus 77
                                phosphorus(1+) 0
paths to the root