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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:3-(trimethylsilyl)-1-propanesulfonic acid-d6
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Accession:CHEBI:144039 term browser browse the term
Definition:A deuterated compound that is is an isotopologue of 3-(trimethylsilyl)propane-1-sulfonic acid (DSS) in which the six hydrogen atoms attached to the carbon chain linking the silicon and the sulfur atoms have been replaced by deuterium. It is often used in NMR spectroscopy (often as the corresponding sodium salt) as a calibration standard - it is much more water soluble that tetramethylsilane, so is often used for studies on proteins in water.
Synonyms:exact_synonym: 3-(trimethylsilyl)((2)H6)propane-1-sulfonic acid
 related_synonym: DSS-d6;   Formula=C6H10D6O3SSi;   InChI=1S/C6H16O3SSi/c1-11(2,3)6-4-5-10(7,8)9/h4-6H2,1-3H3,(H,7,8,9)/i4D2,5D2,6D2;   InChIKey=TVZRAEYQIKYCPH-KETLRHEYSA-N;   SMILES=C[Si](C(C(C(S(O)(=O)=O)([2H])[2H])([2H])[2H])([2H])[2H])(C)C

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Path 1
Term Annotations click to browse term
  CHEBI ontology 20089
    chemical entity 20088
      molecular entity 20058
        isotopically modified compound 1
          deuterated compound 0
            3-(trimethylsilyl)-1-propanesulfonic acid-d6 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20089
    subatomic particle 20058
      composite particle 20058
        hadron 20088
          baryon 20088
            nucleon 20088
              atomic nucleus 20088
                atom 20058
                  main group element atom 19960
                    p-block element atom 19990
                      chalcogen 19732
                        oxygen atom 19674
                          oxygen molecular entity 19674
                            hydroxides 19454
                              oxoacid 18744
                                chalcogen oxoacid 11682
                                  sulfur oxoacid 11294
                                    sulfonic acid 7653
                                      sulfo group 6102
                                        organosulfonic acid 6102
                                          alkanesulfonic acid 3987
                                            3-(trimethylsilyl)propane-1-sulfonic acid 0
                                              3-(trimethylsilyl)-1-propanesulfonic acid-d6 0
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