| 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 23:35:41 UTC |
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| Update Date | 2021-09-26 22:55:45 UTC |
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| HMDB ID | HMDB0246578 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | 4-Pyridylethylmercaptan |
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| Description | 4-Pyridylethylmercaptan, also known as 4-pyridoethanethiol, belongs to the class of organic compounds known as pyridines and derivatives. Pyridines and derivatives are compounds containing a pyridine ring, which is a six-member aromatic heterocycle which consists of one nitrogen atom and five carbon atoms. Based on a literature review very few articles have been published on 4-Pyridylethylmercaptan. This compound has been identified in human blood as reported by (PMID: 31557052 ). 4-pyridylethylmercaptan is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 4-Pyridylethylmercaptan 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/C7H9NS/c9-6-3-7-1-4-8-5-2-7/h1-2,4-5,9H,3,6H2 |
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| Synonyms | | Value | Source |
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| 4-Pyridoethanethiol | HMDB |
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| Chemical Formula | C7H9NS |
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| Average Molecular Weight | 139.22 |
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| Monoisotopic Molecular Weight | 139.045570468 |
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| IUPAC Name | 2-(pyridin-4-yl)ethane-1-thiol |
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| Traditional Name | 2-(pyridin-4-yl)ethanethiol |
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| CAS Registry Number | Not Available |
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| SMILES | SCCC1=CC=NC=C1 |
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| InChI Identifier | InChI=1S/C7H9NS/c9-6-3-7-1-4-8-5-2-7/h1-2,4-5,9H,3,6H2 |
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| InChI Key | VBAOEVKQBLGWTH-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as pyridines and derivatives. Pyridines and derivatives are compounds containing a pyridine ring, which is a six-member aromatic heterocycle which consists of one nitrogen atom and five carbon atoms. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Pyridines and derivatives |
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| Sub Class | Not Available |
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| Direct Parent | Pyridines and derivatives |
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| Alternative Parents | |
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| Substituents | - Pyridine
- Heteroaromatic compound
- Azacycle
- Alkylthiol
- Organic nitrogen compound
- Organopnictogen compound
- Hydrocarbon derivative
- Organosulfur compound
- Organonitrogen compound
- Aromatic heteromonocyclic compound
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| Molecular Framework | Aromatic heteromonocyclic 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 | 9.8095 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.4 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1257.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 332.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 113.7 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 194.6 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 48.1 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 290.6 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 | 376.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 464.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 733.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 45.2 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 | 975.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 221.8 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 231.1 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 495.1 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 463.0 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 | 69.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 4-Pyridylethylmercaptan,1TMS,isomer #1 | C[Si](C)(C)SCCC1=CC=NC=C1 | 1516.2 | Semi standard non polar | 33892256 | | 4-Pyridylethylmercaptan,1TMS,isomer #1 | C[Si](C)(C)SCCC1=CC=NC=C1 | 1438.1 | Standard non polar | 33892256 | | 4-Pyridylethylmercaptan,1TMS,isomer #1 | C[Si](C)(C)SCCC1=CC=NC=C1 | 1794.8 | Standard polar | 33892256 | | 4-Pyridylethylmercaptan,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)SCCC1=CC=NC=C1 | 1751.1 | Semi standard non polar | 33892256 | | 4-Pyridylethylmercaptan,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)SCCC1=CC=NC=C1 | 1682.1 | Standard non polar | 33892256 | | 4-Pyridylethylmercaptan,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)SCCC1=CC=NC=C1 | 1932.5 | 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 - 4-Pyridylethylmercaptan GC-MS (Non-derivatized) - 70eV, Positive | splash10-052f-9500000000-452961168c6cd77bab3a | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4-Pyridylethylmercaptan 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 - 4-Pyridylethylmercaptan 10V, Positive-QTOF | splash10-0a4i-0900000000-e958211e5e18ea3dfa2d | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Pyridylethylmercaptan 20V, Positive-QTOF | splash10-0a4i-2900000000-0688db3fa68c3d42313d | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Pyridylethylmercaptan 40V, Positive-QTOF | splash10-004l-9100000000-a11ebe5161939ff75701 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Pyridylethylmercaptan 10V, Negative-QTOF | splash10-000i-0900000000-f8050d4d090a970d1c9e | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Pyridylethylmercaptan 20V, Negative-QTOF | splash10-000i-1900000000-d3e012345c20da961f1f | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4-Pyridylethylmercaptan 40V, Negative-QTOF | splash10-001i-9000000000-ebad4238928d6f979b30 | 2021-10-12 | Wishart Lab | View Spectrum |
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