| 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 22:23:50 UTC |
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| Update Date | 2021-09-26 22:53:43 UTC |
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| HMDB ID | HMDB0245313 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | 2-Quinoxalinecarboxylic acid |
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| Description | 2-Quinoxalinecarboxylic acid, also known as 2-QCA, belongs to the class of organic compounds known as quinoxalines. Quinoxalines are compounds containing a quinoxaline moiety, a bicyclic heterocycle made up of a benzene ring fused to a pyrazine ring. Based on a literature review very few articles have been published on 2-Quinoxalinecarboxylic acid. This compound has been identified in human blood as reported by (PMID: 31557052 ). 2-quinoxalinecarboxylic acid is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 2-Quinoxalinecarboxylic 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 | OC(=O)C1=NC2=CC=CC=C2N=C1 InChI=1S/C9H6N2O2/c12-9(13)8-5-10-6-3-1-2-4-7(6)11-8/h1-5H,(H,12,13) |
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| Synonyms | | Value | Source |
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| 2-Quinoxalinecarboxylate | Generator | | 2-QCA | MeSH | | Quinoxaline-2-carboxylic acid | MeSH | | Quinoxaline-2-carboxylate | Generator |
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| Chemical Formula | C9H6N2O2 |
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| Average Molecular Weight | 174.1561 |
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| Monoisotopic Molecular Weight | 174.042927446 |
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| IUPAC Name | quinoxaline-2-carboxylic acid |
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| Traditional Name | quinoxaline-2-carboxylic acid |
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| CAS Registry Number | Not Available |
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| SMILES | OC(=O)C1=NC2=CC=CC=C2N=C1 |
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| InChI Identifier | InChI=1S/C9H6N2O2/c12-9(13)8-5-10-6-3-1-2-4-7(6)11-8/h1-5H,(H,12,13) |
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| InChI Key | UPUZGXILYFKSGE-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as quinoxalines. Quinoxalines are compounds containing a quinoxaline moiety, a bicyclic heterocycle made up of a benzene ring fused to a pyrazine ring. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Diazanaphthalenes |
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| Sub Class | Benzodiazines |
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| Direct Parent | Quinoxalines |
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| Alternative Parents | |
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| Substituents | - Quinoxaline
- Pyrazine carboxylic acid
- Pyrazine carboxylic acid or derivatives
- Benzenoid
- Pyrazine
- Heteroaromatic compound
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Azacycle
- Organic nitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organooxygen compound
- Organonitrogen compound
- Organopnictogen compound
- Organic oxygen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic 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 | 10.0705 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 3.42 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1341.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 328.2 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 99.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 213.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 167.3 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 330.4 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 | 345.2 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 112.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 714.8 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 212.0 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 | 965.7 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 222.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 287.5 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 483.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 220.7 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 | 173.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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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-Quinoxalinecarboxylic acid GC-MS (Non-derivatized) - 70eV, Positive | splash10-0kna-1900000000-a0b2656d7014fa805158 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Quinoxalinecarboxylic acid GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Quinoxalinecarboxylic acid GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-11-03 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 2-Quinoxalinecarboxylic acid GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-11-03 | 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-Quinoxalinecarboxylic acid 10V, Positive-QTOF | splash10-004i-0900000000-a7a8b4e3a67374cf3c26 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Quinoxalinecarboxylic acid 20V, Positive-QTOF | splash10-0a4i-0900000000-8dfab3601275f2c847a9 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Quinoxalinecarboxylic acid 40V, Positive-QTOF | splash10-056r-2900000000-41c0ce7bfcff33295493 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Quinoxalinecarboxylic acid 10V, Negative-QTOF | splash10-00b9-0900000000-6e0435940c4c4b7833e4 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Quinoxalinecarboxylic acid 20V, Negative-QTOF | splash10-004i-0900000000-3942f2e1759731448985 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 2-Quinoxalinecarboxylic acid 40V, Negative-QTOF | splash10-004i-0900000000-92ad1adb0c25799beef6 | 2021-10-12 | Wishart Lab | View Spectrum |
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