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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:17248 term browser browse the term
Definition:A tetrahydropterin that has formula C9H13N5O3.
Synonyms:exact_synonym: 2-amino-6-(2-hydroxypropanoyl)-5,6,7,8-tetrahydropteridin-4(3H)-one
 related_synonym: 2-amino-6-lactoyl-5,6,7,8-tetrahydropteridin-4(3H)-one;   6-1'-Oxo-2'-hydroxypropyl tetrahydropterin;   6-Lactoyltetrahydropterin;   Formula=C9H13N5O3;   InChI=1S/C9H13N5O3/c1-3(15)6(16)4-2-11-7-5(12-4)8(17)14-9(10)13-7/h3-4,12,15H,2H2,1H3,(H4,10,11,13,14,17);   InChIKey=HKCYZTKHPLJZDR-UHFFFAOYSA-N;   SMILES=CC(O)C(=O)C1CNc2nc(N)[nH]c(=O)c2N1
 alt_id: CHEBI:12222;   CHEBI:20738;   CHEBI:2207
 xref: CAS:33405-80-0;   HMDB:HMDB0002065;   KEGG:C04244

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19875
    chemical entity 19875
      molecular entity 19872
        polyatomic entity 19786
          heteroatomic molecular entity 19711
            hydroxides 19139
              organic hydroxy compound 18694
                alcohol 15038
                  secondary alcohol 7221
                    6-lactoyl-5,6,7,8-tetrahydropterin 0
                      (6R)-6-lactoyl-5,6,7,8-tetrahydropterin 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19875
    subatomic particle 19873
      composite particle 19873
        hadron 19873
          baryon 19873
            nucleon 19873
              atomic nucleus 19873
                atom 19873
                  main group element atom 19763
                    p-block element atom 19763
                      carbon group element atom 19668
                        carbon atom 19657
                          organic molecular entity 19657
                            organic group 18569
                              organic divalent group 18560
                                organodiyl group 18560
                                  carbonyl group 18468
                                    carbonyl compound 18468
                                      ketone 16216
                                        oxyketone 8655
                                          alpha-oxyketone 8655
                                            alpha-hydroxy ketone 8655
                                              secondary alpha-hydroxy ketone 881
                                                6-lactoyl-5,6,7,8-tetrahydropterin 0
                                                  (6R)-6-lactoyl-5,6,7,8-tetrahydropterin 0
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