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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-mercapto-2-mercaptomethylpropanoic acid
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Accession:CHEBI:17919 term browser browse the term
Definition:A sulfur-containing carboxylic acid consisting of isobutyric acid having mercapto substituents on both beta-carbons.
Synonyms:exact_synonym: 3-sulfanyl-2-(sulfanylmethyl)propanoic acid
 related_synonym: 3-Mercapto-2-mercaptomethylpropanoate;   Formula=C4H8O2S2;   InChI=1S/C4H8O2S2/c5-4(6)3(1-7)2-8/h3,7-8H,1-2H2,(H,5,6);   InChIKey=KRHAHEQEKNJCSD-UHFFFAOYSA-N;   SMILES=OC(=O)C(CS)CS
 alt_id: CHEBI:11846;   CHEBI:1571;   CHEBI:20101
 xref: KEGG:C04371;   KNApSAcK:C00000305
 cyclic_relationship: is_conjugate_acid_of CHEBI:58322

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  CHEBI ontology 19853
    chemical entity 19853
      group 19767
        inorganic group 19202
          thiol group 1947
            thiol 1947
              dithiol 1339
                3-mercapto-2-mercaptomethylpropanoic acid 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19853
    subatomic particle 19851
      composite particle 19851
        hadron 19851
          baryon 19851
            nucleon 19851
              atomic nucleus 19851
                atom 19851
                  main group element atom 19744
                    p-block element atom 19744
                      carbon group element atom 19650
                        carbon atom 19639
                          organic molecular entity 19639
                            organic group 18550
                              organic divalent group 18541
                                organodiyl group 18541
                                  carbonyl group 18447
                                    carbonyl compound 18447
                                      carboxylic acid 18125
                                        monocarboxylic acid 17494
                                          fatty acid 15997
                                            saturated fatty acid 15972
                                              propionic acid 3672
                                                3-mercapto-2-mercaptomethylpropanoic acid 0
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