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 17:44:10 UTC |
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Update Date | 2023-02-21 17:20:54 UTC |
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HMDB ID | HMDB0031581 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Morpholine |
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Description | Morpholine is a permitted (FDA) in edible coatings for fruit and vegetables. Morpholine is a food contaminant arising from its use as a boiler water additive Morpholine is a common additive, in ppm concentrations, for pH adjustment in both fossil fuel and nuclear power plant steam systems. Morpholine is used because its volatility is about the same as water, so once it is added to the water, its concentration becomes distributed rather evenly in both the water and steam phases. Its pH adjusting qualities then become distributed throughout the steam plant to provide corrosion protection. Morpholine is often used in conjunction with low concentrations of hydrazine or ammonia to provide a comprehensive all-volatile treatment chemistry for corrosion protection for the steam systems of such plants. Morpholine decomposes reasonably slowly in the absence of oxygen even at the high temperatures and pressures in these steam systems. Morpholine is an organic chemical compound having the chemical formula O(CH2CH2)2NH. This heterocycle, pictured at right, features both amine and ether functional groups. Because of the amine, morpholine is a base; its conjugate acid is called morpholinium. For example, when morpholine is neutralized by hydrochloric acid, one obtains the salt morpholinium chloride. Morpholine is widely used in organic synthesis. For example, it is a building block in the preparation of the antibiotic linezolid and the anticancer agent gefitinib (Iressa) |
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Structure | InChI=1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2 |
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Synonyms | Value | Source |
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1,4-Oxazinane | ChEBI | 1-Oxa-4-azacyclohexane | ChEBI | Diethylene imidoxide | ChEBI | Diethylene oximide | ChEBI | Diethylenimide oxide | ChEBI | Tetrahydro-1,4-oxazine | ChEBI | Tetrahydro-p-oxazine | ChEBI | C4H9NO | HMDB | Diethyleneimide oxide | HMDB | Drewamine | HMDB | Morpholine ON rasta resin | HMDB | Morpholine, 4-soya alkyl derivs. | HMDB | Morpholine, pract | HMDB | Morpholine,reag | HMDB | tetrahydro-1, 4-Isoxazine | HMDB | tetrahydro-1,4-Isoxazine | HMDB | tetrahydro-2H-1,4-Oxazine | HMDB | tetrahydro-4H-1,4-Oxazine | HMDB | tetrahydro-4H-1-4-Oxazine | HMDB | tetrahydro-P-Isoxazine | HMDB | tetryhydro-2H-1,4-Oxazine | HMDB | Morpholine hydroiodide | MeSH | Morpholine phosphate | MeSH | Morpholine phosphate (3:1) | MeSH | Morpholine sulfite (1:1) | MeSH | Morpholine phosphonate (1:1) | MeSH | Morpholine hydrochloride | MeSH |
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Chemical Formula | C4H9NO |
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Average Molecular Weight | 87.1204 |
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Monoisotopic Molecular Weight | 87.068413915 |
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IUPAC Name | morpholine |
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Traditional Name | morpholine |
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CAS Registry Number | 110-91-8 |
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SMILES | C1COCCN1 |
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InChI Identifier | InChI=1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2 |
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InChI Key | YNAVUWVOSKDBBP-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as morpholines. These are organic compounds containing a morpholine moiety, which consists of a six-member aliphatic saturated ring with the formula C4H9NO, where the oxygen and nitrogen atoms lie at positions 1 and 4, respectively. |
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Kingdom | Organic compounds |
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Super Class | Organoheterocyclic compounds |
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Class | Oxazinanes |
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Sub Class | Morpholines |
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Direct Parent | Morpholines |
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Alternative Parents | |
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Substituents | - Morpholine
- Oxacycle
- Azacycle
- Secondary amine
- Ether
- Secondary aliphatic amine
- Dialkyl ether
- Organic nitrogen compound
- Organic oxygen compound
- Organopnictogen compound
- Hydrocarbon derivative
- Organooxygen compound
- Organonitrogen compound
- Amine
- Aliphatic heteromonocyclic compound
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Molecular Framework | Aliphatic heteromonocyclic 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 | Not Available |
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Role | |
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Physical Properties |
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State | Liquid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | -4.9 °C | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 1000 mg/mL | Not Available | LogP | -0.86 | 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 Kovats Retention IndicesUnderivatizedDerivatized |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - Morpholine GC-MS (Non-derivatized) - 70eV, Positive | splash10-002f-9000000000-b65c7b581aaa4676519a | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Morpholine GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Experimental LC-MS/MS | LC-MS/MS Spectrum - Morpholine LC-ESI-QFT , positive-QTOF | splash10-000i-9000000000-ef7788592c659129990d | 2017-09-14 | HMDB team, MONA | View Spectrum | Experimental LC-MS/MS | LC-MS/MS Spectrum - Morpholine 35V, Positive-QTOF | splash10-000i-9000000000-fa3afe36b2df6e4593fb | 2021-09-20 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 10V, Positive-QTOF | splash10-000i-9000000000-58e574ab622956c50395 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 20V, Positive-QTOF | splash10-000i-9000000000-e73f2477ce8fb7939c1b | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 40V, Positive-QTOF | splash10-0a4m-9000000000-38096611fa99000759d3 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 10V, Negative-QTOF | splash10-000i-9000000000-d26d9243d18f362a37a8 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 20V, Negative-QTOF | splash10-000i-9000000000-4fc73f256c5e047e2f41 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 40V, Negative-QTOF | splash10-0006-9000000000-195f05bda7c7e90b6f9f | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 10V, Negative-QTOF | splash10-000i-9000000000-720381717a40ec4180f3 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 20V, Negative-QTOF | splash10-000l-9000000000-a109f0a2ec47901be6f1 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 40V, Negative-QTOF | splash10-0006-9000000000-d8d1e2618dc14d43ea12 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 10V, Positive-QTOF | splash10-052r-9000000000-77ccc2ec4dc634a6847e | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 20V, Positive-QTOF | splash10-0006-9000000000-9c16c25e0ab0509c283c | 2021-09-25 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Morpholine 40V, Positive-QTOF | splash10-052f-9000000000-0be19b7c3230f2ff7121 | 2021-09-25 | Wishart Lab | View Spectrum |
NMR SpectraSpectrum 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 SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-) | 2023-02-04 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-04 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-04 | FELIX lab | View Spectrum |
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