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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:p-nitrophenyl butyrate
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Accession:CHEBI:85867 term browser browse the term
Definition:A butyrate ester resulting from the formal condensation of the hydroxy group of 4-nitrophenol with the carboxy group of butyric acid.
Synonyms:exact_synonym: 4-nitrophenyl butyrate
 related_synonym: 4-nitrophenyl butanoate;   Formula=C10H11NO4;   InChI=1S/C10H11NO4/c1-2-3-10(12)15-9-6-4-8(5-7-9)11(13)14/h4-7H,2-3H2,1H3;   InChIKey=DVDUMIQZEUTAGK-UHFFFAOYSA-N;   PNPB;   SMILES=CCCC(=O)Oc1ccc(cc1)[N+]([O-])=O;   p-nitrophenol butyrate;   p-nitrophenyl butanoate;   pNP-butyrate;   para-nitrophenyl butyrate
 xref: CAS:2635-84-9
 xref_mesh: MESH:C033592
 xref: MetaCyc:CPD0-2413;   PMID:13032041;   PMID:25633600;   PMID:2794798;   PMID:4015714;   PMID:4052438;   PMID:6895751;   PMID:7107600;   Reaxys:1879729

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p-nitrophenyl butyrate term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Ces1d carboxylesterase 1D multiple interactions
increases hydrolysis
ISO CES1 protein binds to and results in increased hydrolysis of 4-nitrophenyl butyrate
CES1 protein results in increased hydrolysis of 4-nitrophenyl butyrate
CTD PMID:11950785 PMID:16282638 NCBI chr19:13,873,490...13,912,035
Ensembl chr19:13,796,623...13,912,035
JBrowse link
G Ces3a carboxylesterase 3a increases hydrolysis ISO CES3 protein results in increased hydrolysis of 4-nitrophenyl butyrate CTD PMID:11950785 NCBI chr19:32,992,386...33,000,562 JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 20059
    chemical entity 20058
      group 19984
        inorganic group 19469
          nitro group 10797
            nitro compound 10797
              C-nitro compound 10520
                p-nitrophenyl butyrate 2
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
                      carbon group element atom 19882
                        carbon atom 19873
                          organic molecular entity 19873
                            organic group 18943
                              organic divalent group 18928
                                organodiyl group 18928
                                  carbonyl group 18877
                                    carbonyl compound 18877
                                      carboxylic acid 18565
                                        monocarboxylic acid 17748
                                          fatty acid 16149
                                            short-chain fatty acid 15789
                                              fatty acid 4:0 7896
                                                butyric acid 6267
                                                  butyrate ester 1768
                                                    p-nitrophenyl butyrate 2
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