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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:59662 term browser browse the term
Definition:A mixture where R = H or Me. Colistin in which each of the primary amino groups is converted to the corresponding aminomethanesulfonic acid. It is prepared from colistin by the action of formaldehyde followed by sodium bisulfite. A polymyxin antibiotic, it is used as its penta-sodium salt in the treatment of severe infections, particularly of multidrug-resistant Gram-negative bacteria such as Pseudomonas aeruginosa and Acinetobacter baumannii.
Synonyms:related_synonym: Formula=C57H107N16O28S5R;   SMILES=C(C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H]1C(N[C@H](C(N[C@@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(=O)NCC1)[C@@H](C)O)=O)CCNCS(O)(=O)=O)=O)CCNCS(O)(=O)=O)=O)CC(C)C)=O)CC(C)C)=O)CCNCS(O)(=O)=O)=O)=O)CCNCS(O)(=O)=O)=O)[C@@H](C)O)=O)CCNCS(O)(=O)=O)=O)CCC[C@@H](C*)C
 xref: DrugBank:DB01111;   PMID:16931410
 cyclic_relationship: is_conjugate_acid_of CHEBI:59661

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19863
    role 19835
      biological role 19833
        antimicrobial agent 18223
          peptide antibiotic 1817
            colistimethate 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19863
    subatomic particle 19861
      composite particle 19861
        hadron 19861
          baryon 19861
            nucleon 19861
              atomic nucleus 19861
                atom 19861
                  main group element atom 19807
                    p-block element atom 19807
                      carbon group element atom 19748
                        carbon atom 19744
                          organic molecular entity 19744
                            heteroorganic entity 19498
                              organochalcogen compound 19259
                                organooxygen compound 19175
                                  carbon oxoacid 18642
                                    carboxylic acid 18639
                                      carboacyl group 17708
                                        univalent carboacyl group 17708
                                          carbamoyl group 17559
                                            carboxamide 17559
                                              peptide 11128
                                                cyclic peptide 8878
                                                  heterodetic cyclic peptide 1651
                                                    polymyxin 80
                                                      colistin A 34
                                                        colistin 34
                                                          colistimethate 0
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