| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-09-10 22:11:50 UTC |
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| Update Date | 2021-09-26 22:53:19 UTC |
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| HMDB ID | HMDB0245092 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | 2-Cyclopenten-1-one |
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| Description | 2-Cyclopenten-1-one, also known as cyclopent-2-enone, belongs to the class of organic compounds known as cyclic ketones. These are organic compounds containing a ketone that is conjugated to a cyclic moiety. Based on a literature review a significant number of articles have been published on 2-Cyclopenten-1-one. This compound has been identified in human blood as reported by (PMID: 31557052 ). 2-cyclopenten-1-one is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 2-Cyclopenten-1-one 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/C5H6O/c6-5-3-1-2-4-5/h1,3H,2,4H2 |
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| Synonyms | | Value | Source |
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| 2-Cyclopentenone | ChEBI | | Cyclopent-2-enone | ChEBI | | Cyclopenten-3-one | ChEBI | | Cyclopentenone | ChEBI |
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| Chemical Formula | C5H6O |
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| Average Molecular Weight | 82.102 |
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| Monoisotopic Molecular Weight | 82.041864813 |
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| IUPAC Name | cyclopent-2-en-1-one |
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| Traditional Name | cyclopentenone |
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| CAS Registry Number | Not Available |
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| SMILES | O=C1CCC=C1 |
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| InChI Identifier | InChI=1S/C5H6O/c6-5-3-1-2-4-5/h1,3H,2,4H2 |
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| InChI Key | BZKFMUIJRXWWQK-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as cyclic ketones. These are organic compounds containing a ketone that is conjugated to a cyclic moiety. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Carbonyl compounds |
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| Direct Parent | Cyclic ketones |
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| Alternative Parents | |
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| Substituents | - Cyclic ketone
- Organic oxide
- Hydrocarbon derivative
- Aliphatic homomonocyclic compound
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| Molecular Framework | Aliphatic homomonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | Not Available |
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| Role | 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 | 10.2766 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 4.33 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1343.0 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 392.7 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 143.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 284.1 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 145.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 326.0 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 | 377.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 154.9 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 892.1 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 281.0 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 | 859.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 281.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 296.8 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 581.3 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 380.0 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 | 116.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 2-Cyclopenten-1-one,1TMS,isomer #1 | C[Si](C)(C)OC1=CCC=C1 | 1066.4 | Semi standard non polar | 33892256 | | 2-Cyclopenten-1-one,1TMS,isomer #1 | C[Si](C)(C)OC1=CCC=C1 | 964.0 | Standard non polar | 33892256 | | 2-Cyclopenten-1-one,1TMS,isomer #1 | C[Si](C)(C)OC1=CCC=C1 | 1150.1 | Standard polar | 33892256 | | 2-Cyclopenten-1-one,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC1=CCC=C1 | 1310.7 | Semi standard non polar | 33892256 | | 2-Cyclopenten-1-one,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC1=CCC=C1 | 1150.9 | Standard non polar | 33892256 | | 2-Cyclopenten-1-one,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC1=CCC=C1 | 1347.8 | 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 - 2-Cyclopenten-1-one GC-MS (Non-derivatized) - 70eV, Positive | splash10-0f89-9000000000-bcfd5866f8569847ef68 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Cyclopenten-1-one 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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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Cyclopenten-1-one 10V, Positive-QTOF | splash10-001i-9000000000-91ebef4449219553f3f1 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Cyclopenten-1-one 20V, Positive-QTOF | splash10-053u-9000000000-d394c69c979fddc8b0ae | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Cyclopenten-1-one 40V, Positive-QTOF | splash10-0006-9000000000-205ac41037e7c85fb232 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Cyclopenten-1-one 10V, Negative-QTOF | splash10-001i-9000000000-e75a5149c7c9bbbbc6e1 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Cyclopenten-1-one 20V, Negative-QTOF | splash10-001i-9000000000-e75a5149c7c9bbbbc6e1 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Cyclopenten-1-one 40V, Negative-QTOF | splash10-0zgi-9000000000-974ba5057d5209a8b367 | 2021-10-12 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-10-12 | Wishart Lab | View Spectrum |
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