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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:dideuterium oxide
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Accession:CHEBI:41981 term browser browse the term
Definition:A water that has formula 20.02760.
Synonyms:related_synonym: ((2)H2)water;   D2O;   DEUTERATED WATER;   Deuteriumoxid;   Formula=D2O;   InChI=1S/H2O/h1H2/i/hD2;   InChIKey=XLYOFNOQVPJJNP-ZSJDYOACSA-N;   SMILES=[2H]O[2H];   [OD2];   deuterium oxide;   heavy water;   schweres Wasser
 alt_id: CHEBI:29373;   CHEBI:41979
 xref: CAS:7789-20-0;   Gmelin:97;   MolBase:1647;   PDBeChem:DOD

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19800
    role 19751
      chemical role 19320
        greenhouse gas 11112
          water 694
            dideuterium oxide 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19800
    subatomic particle 19799
      composite particle 19799
        hadron 19799
          baryon 19799
            nucleon 19799
              atomic nucleus 19799
                atom 19799
                  main group element atom 19698
                    main group molecular entity 19698
                      s-block molecular entity 19479
                        hydrogen molecular entity 19471
                          hydrides 18834
                            inorganic hydride 17691
                              chalcogen hydride 2531
                                oxygen hydride 754
                                  water 694
                                    dideuterium oxide 0
paths to the root