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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:166856 term browser browse the term
Definition:A methylated tertiary amine that is trimethylammonium in which the hydrogen attached to the nitrogen is replaced by a hydroxy group.
Synonyms:exact_synonym: hydroxy(trimethyl)ammonium
 related_synonym: (CH3)3NOH;   Formula=C3H10NO;   InChI=1S/C3H10NO/c1-4(2,3)5/h5H,1-3H3/q+1;   InChIKey=LGHYUXIXXNHKSE-UHFFFAOYSA-N;   SMILES=C[N+](C)(C)O;   hydroxy(trimethyl)azanium;   hydroxytrimethylazanium
 cyclic_relationship: is_conjugate_acid_of CHEBI:15724

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19786
    chemical entity 19786
      molecular entity 19784
        polyatomic entity 19704
          heteroatomic molecular entity 19635
            hydroxides 19103
              organic hydroxy compound 18667
                hydroxytrimethylaminium 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19786
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19675
                    main group molecular entity 19675
                      s-block molecular entity 19443
                        hydrogen molecular entity 19439
                          hydrides 18763
                            inorganic hydride 17484
                              pnictogen hydride 17461
                                nitrogen hydride 17315
                                  ammonium 8224
                                    ammonium ion derivative 8220
                                      quaternary ammonium ion 5110
                                        methylated tertiary amine 0
                                          hydroxytrimethylaminium 0
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