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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:59159 term browser browse the term
Definition:One of three isomeric monoterpenes differing in the positions of their two double bonds (alpha- and gamma-terpinene being the others). In beta-terpinene the double bonds are at the 1(7)- and 3-positions of the p-menthane skeleton. beta-Terpinene has no known natural source.
Synonyms:exact_synonym: 4-methylidene-1-(propan-2-yl)cyclohexene
 related_synonym: Formula=C10H16;   InChI=1S/C10H16/c1-8(2)10-6-4-9(3)5-7-10/h6,8H,3-5,7H2,1-2H3;   InChIKey=SCWPFSIZUZUCCE-UHFFFAOYSA-N;   SMILES=CC(C)C1=CCC(=C)CC1;   menthadiene-1(7),3;   p-Mentha-1(7),3-diene
 xref: Beilstein:1850801;   CAS:99-84-3;   PMID:16780354;   Reaxys:1850801

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  CHEBI ontology 19775
    chemical entity 19775
      atom 19774
        nonmetal atom 19655
          carbon atom 19574
            organic molecular entity 19574
              isoprenoid 12726
                terpene 12726
                  monoterpene 2851
                    beta-terpinene 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19775
    subatomic particle 19774
      composite particle 19774
        hadron 19774
          baryon 19774
            nucleon 19774
              atomic nucleus 19774
                atom 19774
                  main group element atom 19665
                    main group molecular entity 19665
                      s-block molecular entity 19432
                        hydrogen molecular entity 19427
                          hydrides 18757
                            organic hydride 18361
                              organic fundamental parent 18361
                                hydrocarbon 18073
                                  terpene 12726
                                    monoterpene 2851
                                      beta-terpinene 0
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