| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2008-10-15 12:12:16 UTC |
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| Update Date | 2023-02-21 17:17:25 UTC |
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| HMDB ID | HMDB0010721 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 3-Oxooctanoic acid |
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| Description | 3-Oxooctanoic acid, also known as beta-oxocaprylic acid or 3-keto-N-caprylate, belongs to the class of organic compounds known as medium-chain keto acids and derivatives. These are keto acids with a 6 to 12 carbon atoms long side chain. 3-Oxooctanoic acid exists in all eukaryotes, ranging from yeast to plants to humans. 3-Oxooctanoic acid has been detected, but not quantified in, a few different foods, such as anatidaes (Anatidae), chickens (Gallus gallus), and domestic pigs (Sus scrofa domestica). This could make 3-oxooctanoic acid a potential biomarker for the consumption of these foods. 3-Oxooctanoic acid is a primary metabolite. Primary metabolites are metabolically or physiologically essential metabolites. They are directly involved in an organism’s growth, development or reproduction. Based on a literature review a significant number of articles have been published on 3-Oxooctanoic acid. |
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| Structure | InChI=1S/C8H14O3/c1-2-3-4-5-7(9)6-8(10)11/h2-6H2,1H3,(H,10,11) |
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| Synonyms | | Value | Source |
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| 3-Keto-N-caprylic acid | ChEBI | | 3-Ketooctanoic acid | ChEBI | | beta-Ketocaprylic acid | ChEBI | | beta-Ketooctanoic acid | ChEBI | | beta-Oxocaprylic acid | ChEBI | | beta-Oxooctanoic acid | ChEBI | | 3-Keto-N-caprylate | Generator | | 3-Ketooctanoate | Generator | | b-Ketocaprylate | Generator | | b-Ketocaprylic acid | Generator | | beta-Ketocaprylate | Generator | | Β-ketocaprylate | Generator | | Β-ketocaprylic acid | Generator | | b-Ketooctanoate | Generator | | b-Ketooctanoic acid | Generator | | beta-Ketooctanoate | Generator | | Β-ketooctanoate | Generator | | Β-ketooctanoic acid | Generator | | b-Oxocaprylate | Generator | | b-Oxocaprylic acid | Generator | | beta-Oxocaprylate | Generator | | Β-oxocaprylate | Generator | | Β-oxocaprylic acid | Generator | | b-Oxooctanoate | Generator | | b-Oxooctanoic acid | Generator | | beta-Oxooctanoate | Generator | | Β-oxooctanoate | Generator | | Β-oxooctanoic acid | Generator | | 3-Oxooctanoate | Generator | | 3-oxo-Octanoate | HMDB | | 3-oxo-Octanoic acid | HMDB |
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| Chemical Formula | C8H14O3 |
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| Average Molecular Weight | 158.195 |
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| Monoisotopic Molecular Weight | 158.094294314 |
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| IUPAC Name | 3-oxooctanoic acid |
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| Traditional Name | 3-oxooctanoic acid |
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| CAS Registry Number | Not Available |
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| SMILES | CCCCCC(=O)CC(O)=O |
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| InChI Identifier | InChI=1S/C8H14O3/c1-2-3-4-5-7(9)6-8(10)11/h2-6H2,1H3,(H,10,11) |
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| InChI Key | FWNRRWJFOZIGQZ-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as medium-chain keto acids and derivatives. These are keto acids with a 6 to 12 carbon atoms long side chain. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Keto acids and derivatives |
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| Sub Class | Medium-chain keto acids and derivatives |
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| Direct Parent | Medium-chain keto acids and derivatives |
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| Alternative Parents | |
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| Substituents | - Medium-chain keto acid
- Beta-keto acid
- 1,3-dicarbonyl compound
- Beta-hydroxy ketone
- Ketone
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | |
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| Role | Not Available |
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| Physical Properties |
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| State | Solid |
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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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| 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. | 5.24 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 11.7412 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 3.43 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 30.3 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1753.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 348.4 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 133.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 217.6 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 238.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 470.1 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 | 508.2 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 87.1 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1012.8 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 370.1 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 | 1161.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 290.5 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 343.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 385.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 267.1 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 | 79.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 3-Oxooctanoic acid,1TMS,isomer #1 | CCCCCC(=O)CC(=O)O[Si](C)(C)C | 1355.7 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,1TMS,isomer #2 | CCCCCC(=CC(=O)O)O[Si](C)(C)C | 1501.2 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,1TMS,isomer #3 | CCCCC=C(CC(=O)O)O[Si](C)(C)C | 1460.4 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,2TMS,isomer #1 | CCCCCC(=CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1524.5 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,2TMS,isomer #1 | CCCCCC(=CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1528.6 | Standard non polar | 33892256 | | 3-Oxooctanoic acid,2TMS,isomer #1 | CCCCCC(=CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1545.8 | Standard polar | 33892256 | | 3-Oxooctanoic acid,2TMS,isomer #2 | CCCCC=C(CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1519.0 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,2TMS,isomer #2 | CCCCC=C(CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1537.4 | Standard non polar | 33892256 | | 3-Oxooctanoic acid,2TMS,isomer #2 | CCCCC=C(CC(=O)O[Si](C)(C)C)O[Si](C)(C)C | 1563.6 | Standard polar | 33892256 | | 3-Oxooctanoic acid,1TBDMS,isomer #1 | CCCCCC(=O)CC(=O)O[Si](C)(C)C(C)(C)C | 1572.9 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,1TBDMS,isomer #2 | CCCCCC(=CC(=O)O)O[Si](C)(C)C(C)(C)C | 1730.8 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,1TBDMS,isomer #3 | CCCCC=C(CC(=O)O)O[Si](C)(C)C(C)(C)C | 1696.3 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,2TBDMS,isomer #1 | CCCCCC(=CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1968.8 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,2TBDMS,isomer #1 | CCCCCC(=CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1934.3 | Standard non polar | 33892256 | | 3-Oxooctanoic acid,2TBDMS,isomer #1 | CCCCCC(=CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1853.5 | Standard polar | 33892256 | | 3-Oxooctanoic acid,2TBDMS,isomer #2 | CCCCC=C(CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1964.6 | Semi standard non polar | 33892256 | | 3-Oxooctanoic acid,2TBDMS,isomer #2 | CCCCC=C(CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1935.8 | Standard non polar | 33892256 | | 3-Oxooctanoic acid,2TBDMS,isomer #2 | CCCCC=C(CC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C | 1864.6 | 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 - 3-Oxooctanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-000i-9000000000-9b3ca2d13b28a5c5edc3 | 2016-09-22 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Oxooctanoic acid GC-MS (1 TMS) - 70eV, Positive | splash10-010c-9300000000-7e5566ef916a9047e3fe | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 3-Oxooctanoic 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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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 10V, Positive-QTOF | splash10-0a4l-1900000000-cf21d374433a2daae845 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 20V, Positive-QTOF | splash10-06xw-9500000000-b82cae96c50d2357b799 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 40V, Positive-QTOF | splash10-052f-9000000000-2f425485d3253a53a6e7 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 10V, Negative-QTOF | splash10-0bt9-1900000000-8f3bd0cfff780a809513 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 20V, Negative-QTOF | splash10-08fr-7900000000-9112cbb85161de5302b1 | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 40V, Negative-QTOF | splash10-0a4i-9100000000-68d647898bcdda00130e | 2016-09-14 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 10V, Negative-QTOF | splash10-0a4i-2900000000-a2caa0b8429fb156ed96 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 20V, Negative-QTOF | splash10-0btc-9700000000-335d0c46b9d801f56f5a | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 40V, Negative-QTOF | splash10-052f-9000000000-92713f9972c24d2ca36c | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 10V, Positive-QTOF | splash10-000t-9200000000-2ec333a17165f0916338 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 20V, Positive-QTOF | splash10-00dm-9000000000-942561cb773f0f1eb232 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 3-Oxooctanoic acid 40V, Positive-QTOF | splash10-00kf-9000000000-56bed0f44b01b7711e9f | 2021-09-24 | 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) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-25 | Wishart Lab | View Spectrum |
IR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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