| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-11 17:41:41 UTC |
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| Update Date | 2023-02-21 17:20:06 UTC |
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| HMDB ID | HMDB0031219 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Ethyl carbamate |
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| Description | Ethyl carbamate, also known as aethylurethan or uretan, belongs to the class of organic compounds known as carboximidic acids and derivatives. Carboximidic acids and derivatives are compounds containing a carboximidic group, with the general formula R-C(=NR1)OR2. Ethyl carbamate has been detected, but not quantified, in alcoholic beverages. This could make ethyl carbamate a potential biomarker for the consumption of these foods. Ethyl carbamate is formally rated as a probable carcinogen (by IARC 2A) and is also a potentially toxic compound. It is readily absorbed from the gastrointestinal tract and the skin. It also tends to induce specific mutations in the Kras oncogene in codon 61 of exon 2 including A:T transversions and A-->G transitions in the second base and A-->T transversions in the third base. Urethane, formerly marketed as an inactive ingredient in Profenil injection, was determined to be carcinogenic and was removed from the Canadian, US, and UK markets in 1963. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. In case of contact with eyes, irrigate opened eyes for several minutes under running water. Metabolism is mediated by cytochrome P450 2E1. |
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| Structure | InChI=1S/C3H7NO2/c1-2-6-3(4)5/h2H2,1H3,(H2,4,5) |
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| Synonyms | | Value | Source |
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| Carbamic acid ethyl ester | ChEBI | | Carbamate ethyl ester | Generator | | Ethyl carbamic acid | Generator | | Aethylcarbamat | HMDB | | Aethylurethan | HMDB | | Carbamate, ethyl | HMDB | | Carbamic acid, ethyl ester | HMDB | | Estane 5703 | HMDB | | Ethyl aminoformate | HMDB | | Ethyl ester OF carbamic acid | HMDB | | Ethyl urethan | HMDB | | Ethyl urethane | HMDB | | Ethylcarbamate | HMDB | | Ethylester kyseliny karbaminove | HMDB | | Ethylurethan | HMDB | | Ethylurethane | HMDB | | Leucethane | HMDB | | Leucothane | HMDB | | NH2COOC2H5 | HMDB | | NSC 746 | HMDB | | O-Ethyl carbamate | HMDB | | O-Ethyl urethane | HMDB | | O-Ethylurethane | HMDB | | Pracarbamin | HMDB | | Pracarbamine | HMDB | | U-compound | HMDB | | Uretan | HMDB | | Uretan etylowy | HMDB | | Uretano | HMDB | | Urethan | HMDB | | Urethane | HMDB | | Urethane + ethanol (combination) | HMDB | | Urethane, inn | HMDB | | Ethyl carbamate | ChEBI |
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| Chemical Formula | C3H7NO2 |
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| Average Molecular Weight | 89.0932 |
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| Monoisotopic Molecular Weight | 89.047678473 |
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| IUPAC Name | ethyl carbamate |
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| Traditional Name | urethane |
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| CAS Registry Number | 51-79-6 |
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| SMILES | CCOC(N)=O |
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| InChI Identifier | InChI=1S/C3H7NO2/c1-2-6-3(4)5/h2H2,1H3,(H2,4,5) |
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| InChI Key | JOYRKODLDBILNP-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as carboximidic acids and derivatives. Carboximidic acids and derivatives are compounds containing a carboximidic group, with the general formula R-C(=NR1)OR2. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Carboximidic acids and derivatives |
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| Sub Class | Not Available |
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| Direct Parent | Carboximidic acids and derivatives |
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| Alternative Parents | |
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| Substituents | - Carboximidic acid derivative
- Organic nitrogen compound
- Organic oxygen compound
- Organopnictogen compound
- Hydrocarbon derivative
- Organooxygen compound
- Organonitrogen compound
- Imine
- 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 | |
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| Disposition | |
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| Process | Not Available |
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| Role | |
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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. | 1.61 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.4826 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.76 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 196.6 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 859.4 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 368.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 89.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 250.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 66.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 292.9 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 | 287.0 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 390.9 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 669.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 126.8 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 | 847.0 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 226.5 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 290.4 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 537.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 354.6 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 | 223.8 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Ethyl carbamate,1TMS,isomer #1 | CCOC(=O)N[Si](C)(C)C | 994.1 | Semi standard non polar | 33892256 | | Ethyl carbamate,1TMS,isomer #1 | CCOC(=O)N[Si](C)(C)C | 1041.8 | Standard non polar | 33892256 | | Ethyl carbamate,2TMS,isomer #1 | CCOC(=O)N([Si](C)(C)C)[Si](C)(C)C | 1195.8 | Semi standard non polar | 33892256 | | Ethyl carbamate,2TMS,isomer #1 | CCOC(=O)N([Si](C)(C)C)[Si](C)(C)C | 1100.1 | Standard non polar | 33892256 | | Ethyl carbamate,1TBDMS,isomer #1 | CCOC(=O)N[Si](C)(C)C(C)(C)C | 1219.8 | Semi standard non polar | 33892256 | | Ethyl carbamate,1TBDMS,isomer #1 | CCOC(=O)N[Si](C)(C)C(C)(C)C | 1208.7 | Standard non polar | 33892256 | | Ethyl carbamate,2TBDMS,isomer #1 | CCOC(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 1590.6 | Semi standard non polar | 33892256 | | Ethyl carbamate,2TBDMS,isomer #1 | CCOC(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 1520.0 | 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 - Ethyl carbamate EI-B (Non-derivatized) | splash10-01r7-9000000000-ba57e1f4b939a6bb2c1c | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Ethyl carbamate EI-B (Non-derivatized) | splash10-01r7-9000000000-4905daa85aa870eff5d7 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Ethyl carbamate EI-B (Non-derivatized) | splash10-01r7-9000000000-ba57e1f4b939a6bb2c1c | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Ethyl carbamate EI-B (Non-derivatized) | splash10-01r7-9000000000-4905daa85aa870eff5d7 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Ethyl carbamate GC-MS (Non-derivatized) - 70eV, Positive | splash10-004l-9000000000-e97e597e9d87bdb17da9 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Ethyl carbamate GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | MS | Mass Spectrum (Electron Ionization) | splash10-01r7-9000000000-dbaaf921e6f73cb42292 | 2014-09-20 | Not Available | 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 - Ethyl carbamate 10V, Positive-QTOF | splash10-0006-9000000000-5187886e237ef9d66a60 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 20V, Positive-QTOF | splash10-01oy-9000000000-8c895ae06181b5b4338d | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 40V, Positive-QTOF | splash10-002f-9000000000-ec38f306aca381823adb | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 10V, Negative-QTOF | splash10-0006-9000000000-f2310b881ad089adcd93 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 20V, Negative-QTOF | splash10-0006-9000000000-143896eea6847dbb32c9 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 40V, Negative-QTOF | splash10-0006-9000000000-51c772011dee8070de89 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 10V, Negative-QTOF | splash10-000m-9000000000-df4925907c41e53b12db | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 20V, Negative-QTOF | splash10-0006-9000000000-719d518ee46e1ba1c4f6 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 40V, Negative-QTOF | splash10-0006-9000000000-90726b17dc36e29c5299 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 10V, Positive-QTOF | splash10-0006-9000000000-1abfabaf6ce4ac254e95 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 20V, Positive-QTOF | splash10-0006-9000000000-6bd0c888cfe6b3835c30 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Ethyl carbamate 40V, Positive-QTOF | splash10-0006-9000000000-fd9f25340762315b4515 | 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) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-16 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | 2021-09-16 | 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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