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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:86384 term browser browse the term
Definition:A 3-oxo-5beta-steroid formed from 11-deoxycorticosterone by reduction across the C4-C5 double bond.
Synonyms:exact_synonym: (5beta)-21-hydroxypregnane-3,20-dione
 related_synonym: 21-hydroxy-5beta-pregnane-3,20-dione;   Formula=C21H32O3;   Hydroxydione;   InChI=1S/C21H32O3/c1-20-9-7-14(23)11-13(20)3-4-15-16-5-6-18(19(24)12-22)21(16,2)10-8-17(15)20/h13,15-18,22H,3-12H2,1-2H3/t13-,15+,16+,17+,18-,20+,21+/m1/s1;   InChIKey=USPYDUPOCUYHQL-VEVMSBRDSA-N;   SMILES=C[C@]12CC[C@H]3[C@@H](CC[C@@H]4CC(=O)CC[C@]34C)[C@@H]1CC[C@@H]2C(=O)CO
 xref: CAS:303-01-5;   PMID:21255593;   Reaxys:2625659

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Path 1
Term Annotations click to browse term
  CHEBI ontology 20056
    chemical entity 20055
      group 19986
        organic group 18961
          3-oxo-Delta(4)-steroid group 9160
            3-oxo-Delta(4) steroid 9160
              11-deoxycorticosterone 49
                5beta-dihydrodeoxycorticosterone 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20056
    subatomic particle 20054
      composite particle 20054
        hadron 20054
          baryon 20054
            nucleon 20054
              atomic nucleus 20054
                atom 20054
                  main group element atom 19956
                    p-block element atom 19956
                      carbon group element atom 19882
                        carbon atom 19875
                          organic molecular entity 19875
                            organic group 18961
                              organic divalent group 18947
                                organodiyl group 18947
                                  carbonyl group 18900
                                    carbonyl compound 18900
                                      ketone 17091
                                        oxyketone 8765
                                          alpha-oxyketone 8765
                                            alpha-hydroxy ketone 8765
                                              primary alpha-hydroxy ketone 7640
                                                11-deoxycorticosterone 49
                                                  5beta-dihydrodeoxycorticosterone 0
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