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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:75246 term browser browse the term
Definition:A semisynthetic member of the class of rifamycins and non-systemic gastrointestinal site-specific broad spectrum antibiotic. Used in the treatment of traveller's diarrhoea, hepatic encephalopathy and irritable bowel syndrome.
Synonyms:exact_synonym: (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-1,15-dioxo-1,2-dihydro-2,7-(epoxypentadeca[1,11,13]trienoimino)furo[2'',3'':7',8']naphtho[1',2':4,5]imidazo[1,2-a]pyridin-25-yl acetate
 related_synonym: Formula=C43H51N3O11;   InChI=1S/C43H51N3O11/c1-19-14-16-46-28(18-19)44-32-29-30-37(50)25(7)40-31(29)41(52)43(9,57-40)55-17-15-27(54-10)22(4)39(56-26(8)47)24(6)36(49)23(5)35(48)20(2)12-11-13-21(3)42(53)45-33(34(32)46)38(30)51/h11-18,20,22-24,27,35-36,39,48-51H,1-10H3,(H,45,53)/b12-11+,17-15+,21-13-/t20-,22+,23+,24+,27-,35-,36+,39+,43-/m0/s1;   InChIKey=NZCRJKRKKOLAOJ-XRCRFVBUSA-N;   Rifamycin L 105;   Rifamycin L 105SV;   Rifaxidin;   SMILES=CO[C@H]1\\C=C\\O[C@@]2(C)Oc3c(C)c(O)c4c(O)c(NC(=O)\\C(C)=C/C=C/[C@H](C)[C@H](O)[C@@H](C)[C@@H](O)[C@@H](C)[C@H](OC(C)=O)[C@@H]1C)c1c(nc5cc(C)ccn15)c4c3C2=O;   Xifaxsan;   rifaximina;   rifaximine;   rifaximinun
 xref: CAS:80621-81-4;   DrugBank:DB01220;   Drug_Central:2379;   HMDB:HMDB0015351;   KEGG:D02554
 xref_mesh: MESH:C042734
 xref: PMID:23092785;   PMID:23095030;   PMID:23183443;   PMID:23216382;   PMID:23273888;   PMID:23274384;   PMID:23275147;   PMID:23303506;   PMID:23314671;   PMID:23340064;   PMID:23389621;   PMID:23445237;   PMID:23526308;   PMID:23556126;   PMID:23565181;   PMID:23589147;   PMID:23640348;   PMID:23653636;   PMID:23740443;   PMID:23798671;   PMID:23843564;   PMID:23877348;   PMID:23922656;   PMID:25214516;   PMID:25339518;   PMID:25565769;   PMID:25586470;   PMID:25641072;   PMID:25835116;   PMID:25867912;   PMID:25932262;   PMID:26028929;   PMID:26043290;   Reaxys:7790802;   Wikipedia:Rifaximin

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  CHEBI ontology 909
    role 868
      biological role 868
        antimicrobial agent 236
          rifaximin 0
Path 2
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  CHEBI ontology 909
    subatomic particle 894
      composite particle 894
        hadron 894
          baryon 894
            nucleon 894
              atomic nucleus 894
                atom 894
                  main group element atom 863
                    p-block element atom 860
                      carbon group element atom 836
                        carbon atom 835
                          organic molecular entity 835
                            organic group 393
                              organic divalent group 391
                                organodiyl group 391
                                  carbonyl group 390
                                    carbonyl compound 390
                                      carboxylic acid 268
                                        carboacyl group 167
                                          univalent carboacyl group 167
                                            carbamoyl group 164
                                              carboxamide 164
                                                lactam 24
                                                  ansamycin 1
                                                    rifamycins 1
                                                      rifaximin 0
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