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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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:protium atom
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Accession:CHEBI:29236 term browser browse the term
Definition:The stable isotope of hydrogen with relative atomic mass 1.007825 and a natural abundance of 99.9885 atom percent (from Greek pirhoomegatauomicronsigma, first).
Synonyms:related_synonym: (1)1H;   (1)H;   Formula=[1H];   InChI=1S/H/i1+0;   InChIKey=YZCKVEUIGOORGS-IGMARMGPSA-N;   SMILES=[1H];   hydrogen-1;   protio;   protium



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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 20072
    chemical entity 20071
      molecular entity 20071
        inorganic molecular entity 19784
          hydrogen atom 19756
            protium atom 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
                    main group molecular entity 19971
                      s-block molecular entity 19765
                        hydrogen molecular entity 19756
                          elemental hydrogen 17
                            monoatomic hydrogen 0
                              hydron 0
                                proton 0
                                  protium atom 0
paths to the root