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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:hydrogen donor
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Accession:CHEBI:17499 term browser browse the term
Definition:A molecular entity that can undergo oxidation by the loss of hydrogen atom(s).
Synonyms:related_synonym: AH2;   Donor;   Formula=RH2;   Reduced acceptor;   SMILES=*([H])[H]
 alt_id: CHEBI:13233;   CHEBI:15018;   CHEBI:8785
 xref: KEGG:C00030

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    Path 1
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      CHEBI ontology 19812
        role 19784
          chemical role 19418
            donor 18811
              electron donor 2597
                hydrogen donor 2587
                  1,2-phenylenediamine + 2587
                  NADH(2-) + 0
                  NADPH(4-) + 0
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