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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:27581 term browser browse the term
Definition:The pteridine that is lumazine substituted with a methyl group at C-6, a hydroxy group at C-7 and a 1-D-ribityl group at N-8.
Synonyms:exact_synonym: 1-deoxy-1-(7-hydroxy-6-methyl-2,4-dioxo-3,4-dihydropteridin-8(2H)-yl)-D-ribitol
 related_synonym: 1-deoxy-1-(3,4-dihydro-7-hydroxy-6-methyl-2,4-dioxo-8(2H)-pteridinyl)-D-Ribitol;   7-Hydroxy-6-methyl-8-ribityl lumazine;   7-hydroxy-6-methyl-8-D-ribityllumazine;   Formula=C12H18N4O7;   InChI=1S/C12H16N4O7/c1-4-11(22)16(2-5(18)8(20)6(19)3-17)9-7(13-4)10(21)15-12(23)14-9/h5-6,8,17-20,22H,2-3H2,1H3,(H,15,21,23)/t5-,6+,8-/m0/s1;   InChIKey=COXMGTTXHPRZBO-BBVRLYRLSA-N;   Masuda's compound V;   RL-6-Me-7-OH;   SMILES=Cc1nc2c(nc(=O)[nH]c2=O)n(C[C@H](O)[C@H](O)[C@H](O)CO)c1O
 alt_id: CHEBI:20790;   CHEBI:2265;   CHEBI:70985
 xref: CAS:2184-54-5;   KEGG:C05995;   PDBeChem:1VY;   PMID:23051753;   PMID:24101382;   Reaxys:899260

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Term Annotations click to browse term
  CHEBI ontology 19747
    role 19720
      biological role 19718
        biochemical role 19435
          metabolite 19422
            eukaryotic metabolite 19218
              plant metabolite 17816
                ribitol 1
                  7-hydroxy-6-methyl-8-(1-D-ribityl)lumazine 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19747
    subatomic particle 19745
      composite particle 19745
        hadron 19745
          baryon 19745
            nucleon 19745
              atomic nucleus 19745
                atom 19745
                  main group element atom 19693
                    p-block element atom 19693
                      carbon group element atom 19638
                        carbon atom 19634
                          organic molecular entity 19634
                            organic molecule 19594
                              organic cyclic compound 19400
                                organic heterocyclic compound 18772
                                  organic heteropolycyclic compound 18258
                                    organic heterobicyclic compound 17231
                                      pteridines 10235
                                        dihydroxypteridine 0
                                          2,4-dihydroxypteridine 0
                                            lumazine 0
                                              7-hydroxy-6-methyl-8-(1-D-ribityl)lumazine 0
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