| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-09-11 08:06:01 UTC |
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| Update Date | 2021-09-26 23:02:40 UTC |
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| HMDB ID | HMDB0250943 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | Dehydroacetic acid |
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| Description | dehydroacetic acid, also known as biocide 470F or methylacetopyronone, belongs to the class of organic compounds known as dihydropyranones. Dihydropyranones are compounds containing a hydrogenated pyran ring which bears a ketone, and contains one double bond. dehydroacetic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). This compound has been identified in human blood as reported by (PMID: 31557052 ). Dehydroacetic acid is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Dehydroacetic acid is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. |
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| Structure | InChI=1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3 |
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| Synonyms | | Value | Source |
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| Biocide 470F | ChEBI | | Methylacetopyronone | ChEBI | | Dehydroacetate | Generator | | DHAS | MeSH | | Dehydroacetic acid, zinc ion (1-) | MeSH | | DHA-S | MeSH | | Dehydroacetic acid, potassium ion (1-) | MeSH | | Sodium dehydroacetate | MeSH | | Dehydroacetic acid ion (1-) | MeSH | | Dehydroacetic acid, sodium ion (1-) | MeSH | | Dihydroxyacetone sulfate | MeSH | | Dehydroacetic acid, sodium monohydrate ion (1-) | MeSH | | e265 | ChEMBL |
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| Chemical Formula | C8H8O4 |
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| Average Molecular Weight | 168.148 |
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| Monoisotopic Molecular Weight | 168.042258738 |
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| IUPAC Name | 3-acetyl-6-methyl-3,4-dihydro-2H-pyran-2,4-dione |
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| Traditional Name | dehydroacetic acid |
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| CAS Registry Number | Not Available |
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| SMILES | CC(=O)C1C(=O)OC(C)=CC1=O |
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| InChI Identifier | InChI=1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3 |
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| InChI Key | PGRHXDWITVMQBC-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as dihydropyranones. Dihydropyranones are compounds containing a hydrogenated pyran ring which bears a ketone, and contains one double bond. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Pyrans |
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| Sub Class | Pyranones and derivatives |
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| Direct Parent | Dihydropyranones |
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| Alternative Parents | |
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| Substituents | - Dihydropyranone
- 1,3-diketone
- 1,3-dicarbonyl compound
- Enol ester
- Cyclic ketone
- Lactone
- Ketone
- Carboxylic acid ester
- Oxacycle
- Monocarboxylic acid or derivatives
- Carboxylic acid derivative
- Hydrocarbon derivative
- Carbonyl group
- Organooxygen compound
- Organic oxide
- Organic oxygen compound
- Aliphatic heteromonocyclic compound
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| Molecular Framework | Aliphatic heteromonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Not Available | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Predicted by Siyang on May 30, 2022 | 11.537 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 0.06 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1513.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 366.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 108.3 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 222.6 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 62.3 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 383.5 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 442.7 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 93.4 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 825.3 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 324.8 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1178.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 251.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 311.0 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 541.9 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 251.5 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 107.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Dehydroacetic acid,1TMS,isomer #1 | CC1=CC(=O)C(=C(C)O[Si](C)(C)C)C(=O)O1 | 1535.4 | Semi standard non polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #1 | CC1=CC(=O)C(=C(C)O[Si](C)(C)C)C(=O)O1 | 1522.3 | Standard non polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #1 | CC1=CC(=O)C(=C(C)O[Si](C)(C)C)C(=O)O1 | 2118.8 | Standard polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #2 | CC(=O)C1=C(O[Si](C)(C)C)C=C(C)OC1=O | 1588.0 | Semi standard non polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #2 | CC(=O)C1=C(O[Si](C)(C)C)C=C(C)OC1=O | 1537.5 | Standard non polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #2 | CC(=O)C1=C(O[Si](C)(C)C)C=C(C)OC1=O | 1853.2 | Standard polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #3 | C=C(O[Si](C)(C)C)C1C(=O)C=C(C)OC1=O | 1528.5 | Semi standard non polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #3 | C=C(O[Si](C)(C)C)C1C(=O)C=C(C)OC1=O | 1495.6 | Standard non polar | 33892256 | | Dehydroacetic acid,1TMS,isomer #3 | C=C(O[Si](C)(C)C)C1C(=O)C=C(C)OC1=O | 2064.5 | Standard polar | 33892256 | | Dehydroacetic acid,2TMS,isomer #1 | C=C(O[Si](C)(C)C)C1=C(O[Si](C)(C)C)C=C(C)OC1=O | 1695.9 | Semi standard non polar | 33892256 | | Dehydroacetic acid,2TMS,isomer #1 | C=C(O[Si](C)(C)C)C1=C(O[Si](C)(C)C)C=C(C)OC1=O | 1622.6 | Standard non polar | 33892256 | | Dehydroacetic acid,2TMS,isomer #1 | C=C(O[Si](C)(C)C)C1=C(O[Si](C)(C)C)C=C(C)OC1=O | 1790.3 | Standard polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #1 | CC1=CC(=O)C(=C(C)O[Si](C)(C)C(C)(C)C)C(=O)O1 | 1779.3 | Semi standard non polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #1 | CC1=CC(=O)C(=C(C)O[Si](C)(C)C(C)(C)C)C(=O)O1 | 1773.5 | Standard non polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #1 | CC1=CC(=O)C(=C(C)O[Si](C)(C)C(C)(C)C)C(=O)O1 | 2246.4 | Standard polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #2 | CC(=O)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C)OC1=O | 1840.5 | Semi standard non polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #2 | CC(=O)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C)OC1=O | 1765.0 | Standard non polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #2 | CC(=O)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C)OC1=O | 2031.3 | Standard polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #3 | C=C(O[Si](C)(C)C(C)(C)C)C1C(=O)C=C(C)OC1=O | 1759.3 | Semi standard non polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #3 | C=C(O[Si](C)(C)C(C)(C)C)C1C(=O)C=C(C)OC1=O | 1735.2 | Standard non polar | 33892256 | | Dehydroacetic acid,1TBDMS,isomer #3 | C=C(O[Si](C)(C)C(C)(C)C)C1C(=O)C=C(C)OC1=O | 2170.1 | Standard polar | 33892256 | | Dehydroacetic acid,2TBDMS,isomer #1 | C=C(O[Si](C)(C)C(C)(C)C)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C)OC1=O | 2145.9 | Semi standard non polar | 33892256 | | Dehydroacetic acid,2TBDMS,isomer #1 | C=C(O[Si](C)(C)C(C)(C)C)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C)OC1=O | 2050.8 | Standard non polar | 33892256 | | Dehydroacetic acid,2TBDMS,isomer #1 | C=C(O[Si](C)(C)C(C)(C)C)C1=C(O[Si](C)(C)C(C)(C)C)C=C(C)OC1=O | 2098.5 | Standard polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Dehydroacetic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0006-9400000000-f1f92b5ea9b044513f80 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Dehydroacetic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Experimental LC-MS/MS | LC-MS/MS Spectrum - Dehydroacetic acid 40V, Negative-QTOF | splash10-001l-9000000000-181425ec110b9c5a9776 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Dehydroacetic acid 10V, Negative-QTOF | splash10-001i-9200000000-45d1ecab9ba1f91883a3 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Dehydroacetic acid 20V, Negative-QTOF | splash10-001i-9000000000-b7184d63f9162734651f | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 10V, Positive-QTOF | splash10-014i-0900000000-4d35cc6098ee826fca24 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 20V, Positive-QTOF | splash10-014i-1900000000-b3b4599d3246305b799d | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 40V, Positive-QTOF | splash10-014i-9500000000-887adc93442631e8c782 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 10V, Negative-QTOF | splash10-014i-0900000000-d043341fb28af6588ee6 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 20V, Negative-QTOF | splash10-004i-6900000000-974c56abc820c340449a | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 40V, Negative-QTOF | splash10-0019-9200000000-751c57b9608b2616520e | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 10V, Negative-QTOF | splash10-014i-0900000000-6e712cdb65dbb12e2ca9 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 20V, Negative-QTOF | splash10-00o3-9800000000-ed75a89680bf02fd8032 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 40V, Negative-QTOF | splash10-066r-9000000000-6ddbe4c8dfd276924822 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 10V, Positive-QTOF | splash10-014i-1900000000-311f6e4a17bcb9fe31c3 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 20V, Positive-QTOF | splash10-00l6-9200000000-129dec7fc77097bdc127 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Dehydroacetic acid 40V, Positive-QTOF | splash10-0006-9000000000-ebd34c53bbfcb86a98aa | 2021-10-12 | Wishart Lab | View Spectrum |
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