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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:phthaloyl group
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Accession:CHEBI:26095 term browser browse the term
Definition:A divalent carboacyl group formed by removal of an OH from each carboxyl group of phthalic acid. It has been used as an amino protecting group of deoxyadenosine in oligonucleotide synthesis.
Synonyms:exact_synonym: benzene-1,2-dicarbonyl
 related_synonym: Formula=C8H4O2;   Pht<;   SMILES=C(=O)(*)C=1C=CC=CC1C(=O)*;   phthaloyl
 xref: PMID:7400667

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Path 1
Term Annotations click to browse term
  CHEBI ontology 25129
    role 25052
      application 24248
        protecting group 0
          phthaloyl group 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 25129
    subatomic particle 25090
      composite particle 25090
        hadron 25090
          baryon 25090
            nucleon 25090
              atomic nucleus 25090
                atom 25090
                  main group element atom 24969
                    p-block element atom 24969
                      carbon group element atom 24539
                        carbon atom 24503
                          organic molecular entity 24503
                            organic group 22893
                              organic divalent group 22873
                                organodiyl group 22873
                                  carbonyl group 22867
                                    carbonyl compound 22867
                                      carboxylic acid 21941
                                        carboacyl group 19774
                                          divalent carboacyl group 12
                                            phthaloyl group 0
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