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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.

Term:4-Methyl-3-penten-2-one, 9CI
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Accession:CHEBI:89993 term browser browse the term
Definition:An olefinic compound that has formula C6H10O.
Synonyms:related_synonym: (CH3)2C=CHC(=O)CH3;   1-Methylpent-2-en-4-one;   2-Methyl-2-penten-4-one;   2-Methyl-2-pentenone-4;   2-Methyl-4-oxo-2-pentene;   3-Isohexen-2-one;   3-PENTEN,2-ONE,4-METHYL MESITYLOXIDE;   4-Methyl-3-Penten-2-one;   4-Methyl-3-penten-2-on;   4-Methyl-3-penten-2-one (mesityl oxide);   4-Methyl-3-pentene-2-one;   4-Methylpent-3-en-2-one;   4-Metil-3-penten-2-one;   FEMA 3368;   Formula=C6H10O;   InChI=1S/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H3;   InChIKey=SHOJXDKTYKFBRD-UHFFFAOYSA-N;   Isobutenyl methyl ketone;   Isopropylidene-Acetone;   Isopropylideneacetone;   Mesityl oxide;   Mesityl oxide [UN1229] [Flammable liquid];   Mesityloxid;   Mesityloxid(german);   Mesityloxyde;   Methyl 2,2-dimethylvinyl ketone;   Methyl 2-methyl-1-propenyl ketone;   Ossido di mesitile;   Oxyde de mesityle;   SMILES=CC(C)=CC(C)=O
 xref: CAS:141-79-7;   HMDB:HMDB0031563;   PMID:17314143;   PMID:24657864

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    subatomic particle 0
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            nucleon 0
              atomic nucleus 0
                atom 0
                  main group element atom 0
                    p-block element atom 0
                      carbon group element atom 0
                        carbon atom 0
                          organic molecular entity 0
                            organic group 0
                              organic divalent group 0
                                organodiyl group 0
                                  carbonyl group 0
                                    carbonyl compound 0
                                      carboxylic acid 0
                                        monocarboxylic acid 0
                                          alpha,beta-unsaturated monocarboxylic acid 0
                                            acrylic acid 0
                                              4-Methyl-3-penten-2-one, 9CI 0
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