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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:166776 term browser browse the term
Definition:A glucocorticoid that is prednisolone in which the oxo group at position 20 has been reduced to the corresponding alpha-hydroxy group. It is a metabolite of prednisolone.
Synonyms:exact_synonym: (20R)-11beta,17,20,21-tetrahydroxypregna-1,4-dien-3-one
 related_synonym: (11beta,20R)-11,17,20,21-tetrahydroxypregna-1,4-dien-3-one;   (20R)-hydroxyprednisolone;   20(R)-hydroxy prednisolone;   20alpha-dihydro-PRED;   20alpha-dihydro-prednisolone;   20alpha-hydroxy prednisolone;   20alpha-hydroxyprednisolone;   Formula=C21H30O5;   InChI=1S/C21H30O5/c1-19-7-5-13(23)9-12(19)3-4-14-15-6-8-21(26,17(25)11-22)20(15,2)10-16(24)18(14)19/h5,7,9,14-18,22,24-26H,3-4,6,8,10-11H2,1-2H3/t14-,15-,16-,17-,18+,19-,20-,21-/m0/s1;   InChIKey=LCOVYWIXMAJCDS-LCGKLAOVSA-N;   SMILES=[H][C@@]12CC[C@](O)([C@H](O)CO)[C@@]1(C)C[C@H](O)[C@@]1([H])[C@@]2([H])CCC2=CC(=O)C=C[C@]12C
 xref: CAS:15847-24-2;   Chemspider:27524367;   PMID:2055997;   PMID:23510304;   PMID:28806969;   PMID:34081842

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Term Annotations click to browse term
  CHEBI ontology 20072
    role 20024
      biological role 20023
        xenobiotic 18671
          prednisolone 232
            20alpha-dihydroprednisolone 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20072
    subatomic particle 20071
      composite particle 20071
        hadron 20071
          baryon 20071
            nucleon 20071
              atomic nucleus 20071
                atom 20071
                  main group element atom 19971
                    p-block element atom 19971
                      carbon group element atom 19894
                        carbon atom 19887
                          organic molecular entity 19887
                            organic group 18965
                              organic divalent group 18951
                                organodiyl group 18951
                                  carbonyl group 18903
                                    carbonyl compound 18903
                                      ketone 17111
                                        oxo steroid 10337
                                          3-oxo steroid 9941
                                            3-oxo-Delta(4) steroid 9177
                                              progesterone 2724
                                                Delta(1)-progesterone 238
                                                  prednisolone 232
                                                    20alpha-dihydroprednisolone 0
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