| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2009-07-25 00:08:24 UTC |
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| Update Date | 2023-02-21 17:17:50 UTC |
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| HMDB ID | HMDB0012843 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 6-Hydroxyhexanoic acid |
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| Description | 6-Hydroxyhexanoate was identified as the immediate product of hexanoate w-hydroxylation by whole cells and was further oxidized into adipic acid and an unexpected metabolite identified as 2-tetrahydrofuranacetic acid. This same metabolite, together with adipic acid, was also detected when similarly induced cells were incubated with hexanoate or 1,6-hexanediol, but not with 6-oxohexanoate (adipic semialdehyde).Cells grown on hexanoate and incubated with 6-hydroxyhexanoate were also found to accumulate 2-tetrahydrofuranacetic acid, which was not further degraded. Utilization of 6-hydroxyhexanoate for growth was restricted to those organisms also able to utilize adipate. Similar observations were made with 1,6-hexanediol serving as the carbon source and cells obtained from one organism,Pseudomonas aeruginosa PAO, grown either on 1,6-hexanediol or 6-hydroxyhexanoate,were found to be well induced for both 6-oxohexanoate and adipate oxidation. The results indicate that 6-hydroxyhexanoate and 1,6-hexanediol are susceptible to both 1B- and w-oxidative attack; however, the former pathway appears to be of no physiological significance since it generates 2-tetrahydrofuranacetic acid as a nonmetabolizable intermediate, making w-oxidation via adipate the exclusive pathway for degradation. |
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| Structure | InChI=1S/C6H12O3/c7-5-3-1-2-4-6(8)9/h7H,1-5H2,(H,8,9) |
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| Synonyms | | Value | Source |
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| 5-Carboxypentanol | ChEBI | | 5-Hydroxypentanecarboxylic acid | ChEBI | | 6-Hydroxy caproic acid | ChEBI | | 6-Hydroxycaproic acid | ChEBI | | 6-Hydroxyhexanoate | ChEBI | | epsilon-Hydroxycaproic acid | ChEBI | | epsilon-Hydroxyhexanoic acid | ChEBI | | 5-Hydroxypentanecarboxylate | Generator | | 6-Hydroxy caproate | Generator | | 6-Hydroxycaproate | Generator | | epsilon-Hydroxycaproate | Generator | | epsilon-Hydroxyhexanoate | Generator | | 6-Hydroxyhexanoic acid | Generator |
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| Chemical Formula | C6H12O3 |
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| Average Molecular Weight | 132.1577 |
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| Monoisotopic Molecular Weight | 132.07864425 |
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| IUPAC Name | 6-hydroxyhexanoic acid |
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| Traditional Name | 6-hydroxyhexanoic acid |
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| CAS Registry Number | 1191-25-9 |
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| SMILES | OCCCCCC(O)=O |
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| InChI Identifier | InChI=1S/C6H12O3/c7-5-3-1-2-4-6(8)9/h7H,1-5H2,(H,8,9) |
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| InChI Key | IWHLYPDWHHPVAA-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as medium-chain hydroxy acids and derivatives. These are hydroxy 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 | Hydroxy acids and derivatives |
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| Sub Class | Medium-chain hydroxy acids and derivatives |
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| Direct Parent | Medium-chain hydroxy acids and derivatives |
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| Alternative Parents | |
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| Substituents | - Medium-chain hydroxy acid
- Medium-chain fatty acid
- Hydroxy fatty acid
- Straight chain fatty acid
- Fatty acyl
- Fatty acid
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Carbonyl group
- Organic oxide
- Organic oxygen compound
- Alcohol
- Organooxygen compound
- Primary alcohol
- Hydrocarbon derivative
- 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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| Not Available | Not Available |
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| Physical Properties |
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| State | Solid |
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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. | 2.38 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.1768 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.65 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 144.2 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1129.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 290.5 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 89.3 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 176.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 91.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 258.0 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 | 293.3 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 222.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 665.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 203.7 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 | 887.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 200.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 227.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 572.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 254.5 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 | 274.7 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 6-Hydroxyhexanoic acid,1TMS,isomer #1 | C[Si](C)(C)OCCCCCC(=O)O | 1350.2 | Semi standard non polar | 33892256 | | 6-Hydroxyhexanoic acid,1TMS,isomer #2 | C[Si](C)(C)OC(=O)CCCCCO | 1306.0 | Semi standard non polar | 33892256 | | 6-Hydroxyhexanoic acid,2TMS,isomer #1 | C[Si](C)(C)OCCCCCC(=O)O[Si](C)(C)C | 1433.6 | Semi standard non polar | 33892256 | | 6-Hydroxyhexanoic acid,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OCCCCCC(=O)O | 1589.7 | Semi standard non polar | 33892256 | | 6-Hydroxyhexanoic acid,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)CCCCCO | 1540.1 | Semi standard non polar | 33892256 | | 6-Hydroxyhexanoic acid,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OCCCCCC(=O)O[Si](C)(C)C(C)(C)C | 1873.5 | Semi standard non polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Experimental GC-MS | GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-EI-TOF (Non-derivatized) | splash10-0002-2910000000-e716906e6cfff1fe8280 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-EI-TOF (Non-derivatized) | splash10-000b-3900000000-40993af249322e692c7e | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-EI-TOF (Non-derivatized) | splash10-00ks-3900000000-2cef5bd8abc32978760e | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-EI-TOF (Non-derivatized) | splash10-0002-2910000000-e716906e6cfff1fe8280 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-EI-TOF (Non-derivatized) | splash10-000b-3900000000-40993af249322e692c7e | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-EI-TOF (Non-derivatized) | splash10-00ks-3900000000-2cef5bd8abc32978760e | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0006-9100000000-af2963e26a3090eb411a | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-MS (2 TMS) - 70eV, Positive | splash10-00di-9820000000-7e00127952e941ecee9b | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 6-Hydroxyhexanoic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 6-Hydroxyhexanoic 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 - 6-Hydroxyhexanoic acid LC-ESI-QQ , negative-QTOF | splash10-0a4i-9000000000-a8088eacd86801cbaf62 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid LC-ESI-QQ , negative-QTOF | splash10-0a4i-9000000000-5b779c4e5332478575cc | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid LC-ESI-QQ , negative-QTOF | splash10-0a4i-9000000000-76288a084d6a02586a2c | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid LC-ESI-QQ , negative-QTOF | splash10-0a4i-9000000000-3aa48f729f122be4de71 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid LC-ESI-QQ , negative-QTOF | splash10-0a4i-9000000000-a1c68e5bb179dbd48ebd | 2017-09-14 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 10V, Positive-QTOF | splash10-014i-3900000000-6553d45b878b4896fa25 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 20V, Positive-QTOF | splash10-014i-9500000000-0fb0bf97042c7f9c8223 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 40V, Positive-QTOF | splash10-052f-9000000000-1a0fadab662757b40358 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 10V, Negative-QTOF | splash10-001i-1900000000-7a599e4f4b0881d45d77 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 20V, Negative-QTOF | splash10-01qi-4900000000-17b9ffeba434e24b5d11 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 40V, Negative-QTOF | splash10-052f-9000000000-ccbbb53893a6b3b0547a | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 10V, Positive-QTOF | splash10-014i-9300000000-092fbfae7070731d2c48 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 20V, Positive-QTOF | splash10-0603-9000000000-790bd1a70820471cbd76 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 40V, Positive-QTOF | splash10-052f-9000000000-02783816d58a8896d3bd | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 10V, Negative-QTOF | splash10-03dj-7900000000-63281c7d32db52f00639 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 20V, Negative-QTOF | splash10-01ot-9600000000-c5cbc9ed64f6700fd30d | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 6-Hydroxyhexanoic acid 40V, Negative-QTOF | splash10-0a4i-9000000000-d991bce438e188e89b42 | 2021-09-24 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-29 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-29 | 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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