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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:135598 term browser browse the term
Synonyms:related_synonym: Formula=C18H40O4P2;   InChI=1S/C18H40O4P2/c1-5-19-9-13-23(14-10-20-6-2)17-18-24(15-11-21-7-3)16-12-22-8-4/h5-18H2,1-4H3;   InChIKey=QCWJONLQSHEGEJ-UHFFFAOYSA-N;   SMILES=P(CCP(CCOCC)CCOCC)(CCOCC)CCOCC
 xref: CAS:127502-06-1;   Drug_Central:3592

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 20059
    role 20009
      chemical role 19539
        catalyst 8096
          phosphine 36
            tetrofosmin 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20059
    subatomic particle 20056
      composite particle 20056
        hadron 20056
          baryon 20056
            nucleon 20056
              atomic nucleus 20056
                atom 20056
                  main group element atom 19956
                    p-block element atom 19956
                      pnictogen 19015
                        phosphorus atom 10202
                          phosphorus molecular entity 10202
                            phosphine 36
                              tetrofosmin 0
paths to the root