Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


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:tosyl group
go back to main search page
Accession:CHEBI:51094 term browser browse the term
Definition:A group, usually derived from the compound 4-toluenesulfonyl chloride, which forms esters and amides of toluenesulfonic acid; often used as a protecting group for alcohols and amines in organic synthesis reactions.
Synonyms:exact_synonym: (4-methylphenyl)(dioxido)-lambda(6)-sulfanyl;   (4-methylphenyl)sulfonyl
 related_synonym: Formula=C7H7O2S;   SMILES=Cc1ccc(cc1)S(-*)(=O)=O;   Ts group;   p-tolylsulfonyl;   p-tolylsulfonyl group
 xref: PMID:13867017

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 25129
    role 25052
      application 24248
        protecting group 0
          tosyl group 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 25129
    subatomic particle 25090
      composite particle 25090
        hadron 25090
          baryon 25090
            nucleon 25090
              atomic nucleus 25090
                atom 25090
                  main group element atom 24969
                    p-block element atom 24969
                      chalcogen 23892
                        oxygen atom 23780
                          oxygen molecular entity 23780
                            hydroxides 22948
                              oxoacid 22178
                                chalcogen oxoacid 12238
                                  sulfur oxoacid 11805
                                    sulfonic acid 7728
                                      sulfo group 6097
                                        organosulfonic acid 6097
                                          arenesulfonic acid 700
                                            toluene-4-sulfonic acid 0
                                              tosyl group 0
paths to the root