| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2007-04-12 15:42:09 UTC |
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| Update Date | 2023-02-21 17:17:10 UTC |
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| HMDB ID | HMDB0005846 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Ethyl isopropyl ketone |
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| Description | Ethyl isopropyl ketone, also known as 2-methyl-3-pentanal or 2-methylpentan-3-one, belongs to the class of organic compounds known as ketones. These are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. Ethyl isopropyl ketone (or ethyl isopropyl ketone) is a volatile organic compound. Ethyl isopropyl ketone is a mint tasting compound. ethyl isopropyl ketone has been detected, but not quantified in corns. This could make ethyl isopropyl ketone a potential biomarker for the consumption of these foods. Volatile organic compounds from feces have the potential to help in the diagnosis of gastrointestinal disease. Ethyl isopropyl ketone is a component of the feces in the normal population and is also occasionally found as a volatile component of normal human biofluids. Ethyl isopropyl ketone is an aliphatic ketone used as a reagent in organic chemistry and as a solvent. |
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| Structure | InChI=1S/C6H12O/c1-4-6(7)5(2)3/h5H,4H2,1-3H3 |
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| Synonyms | | Value | Source |
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| 2-Methyl-3-pentanal | HMDB | | 2-Methyl-3-pentanone | HMDB | | 2-Methylpentan-3-one | HMDB | | 4-Methyl-3-pentanone | HMDB | | iso-C3H7COC2H5 | HMDB | | Isopropyl ethyl ketone | HMDB |
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| Chemical Formula | C6H12O |
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| Average Molecular Weight | 100.1589 |
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| Monoisotopic Molecular Weight | 100.088815006 |
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| IUPAC Name | 2-methylpentan-3-one |
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| Traditional Name | 4-methyl-3-pentanone |
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| CAS Registry Number | 565-69-5 |
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| SMILES | CCC(=O)C(C)C |
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| InChI Identifier | InChI=1S/C6H12O/c1-4-6(7)5(2)3/h5H,4H2,1-3H3 |
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| InChI Key | HYTRYEXINDDXJK-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as ketones. These are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. |
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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 | Ketones |
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| Alternative Parents | |
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| Substituents | - Ketone
- Organic oxide
- Hydrocarbon derivative
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | |
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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 | Liquid |
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| Experimental Molecular Properties | |
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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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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 3.43 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 14.262 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 3.98 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 35.0 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1817.0 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 543.5 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 190.8 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 346.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 156.7 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 546.9 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 | 581.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 124.1 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1058.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 397.1 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 | 1250.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 347.8 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 333.7 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 454.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 473.7 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 | 51.2 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Ethyl isopropyl ketone,1TMS,isomer #1 | CCC(O[Si](C)(C)C)=C(C)C | 983.2 | Semi standard non polar | 33892256 | | Ethyl isopropyl ketone,1TMS,isomer #1 | CCC(O[Si](C)(C)C)=C(C)C | 941.6 | Standard non polar | 33892256 | | Ethyl isopropyl ketone,1TMS,isomer #1 | CCC(O[Si](C)(C)C)=C(C)C | 974.6 | Standard polar | 33892256 | | Ethyl isopropyl ketone,1TMS,isomer #2 | CC=C(O[Si](C)(C)C)C(C)C | 926.4 | Semi standard non polar | 33892256 | | Ethyl isopropyl ketone,1TMS,isomer #2 | CC=C(O[Si](C)(C)C)C(C)C | 887.8 | Standard non polar | 33892256 | | Ethyl isopropyl ketone,1TMS,isomer #2 | CC=C(O[Si](C)(C)C)C(C)C | 1006.5 | Standard polar | 33892256 | | Ethyl isopropyl ketone,1TBDMS,isomer #1 | CCC(O[Si](C)(C)C(C)(C)C)=C(C)C | 1200.1 | Semi standard non polar | 33892256 | | Ethyl isopropyl ketone,1TBDMS,isomer #1 | CCC(O[Si](C)(C)C(C)(C)C)=C(C)C | 1142.2 | Standard non polar | 33892256 | | Ethyl isopropyl ketone,1TBDMS,isomer #1 | CCC(O[Si](C)(C)C(C)(C)C)=C(C)C | 1173.3 | Standard polar | 33892256 | | Ethyl isopropyl ketone,1TBDMS,isomer #2 | CC=C(O[Si](C)(C)C(C)(C)C)C(C)C | 1142.6 | Semi standard non polar | 33892256 | | Ethyl isopropyl ketone,1TBDMS,isomer #2 | CC=C(O[Si](C)(C)C(C)(C)C)C(C)C | 1121.0 | Standard non polar | 33892256 | | Ethyl isopropyl ketone,1TBDMS,isomer #2 | CC=C(O[Si](C)(C)C(C)(C)C)C(C)C | 1196.6 | Standard polar | 33892256 |
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| General References | - Zlatkis A, Liebich HM: Profile of volatile metabolites in human urine. Clin Chem. 1971 Jul;17(7):592-4. [PubMed:5556886 ]
- Garner CE, Smith S, de Lacy Costello B, White P, Spencer R, Probert CS, Ratcliffe NM: Volatile organic compounds from feces and their potential for diagnosis of gastrointestinal disease. FASEB J. 2007 Jun;21(8):1675-88. Epub 2007 Feb 21. [PubMed:17314143 ]
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