| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2009-07-25 00:12:03 UTC |
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| Update Date | 2020-02-26 21:38:05 UTC |
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| HMDB ID | HMDB0013035 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Paraoxon |
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| Description | Paraoxon is an acetylcholinesterase inhibitor. It is an organophosphate oxon, and the active metabolite of the insecticide parathion. It is also used as an opthamological drug against glaucoma. Paraoxon is one of the most potent acetylcholinesterase-inhibiting insecticides available, around 70% as potent as the nerve agent sarin, and so is now rarely used as an insecticide due to the risk of poisoning to humans and other animals. It is easily absorbed through skin, and was used as an assassination weapon by the apartheid-era South African chemical weapons program Project Coast. |
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| Structure | CCOP(=O)(OCC)OC1=CC=C(C=C1)[N+]([O-])=O InChI=1S/C10H14NO6P/c1-3-15-18(14,16-4-2)17-10-7-5-9(6-8-10)11(12)13/h5-8H,3-4H2,1-2H3 |
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| Synonyms | | Value | Source |
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| Diethyl p-nitrophenyl phosphate | ChEBI | | Diethyl paraoxon | ChEBI | | Ethyl paraoxon | ChEBI | | O,O-Diethyl O-p-nitrophenyl phosphate | ChEBI | | p-Nitrophenyl diethyl phosphate | ChEBI | | Phosphacol | ChEBI | | Phosphoric acid diethyl 4-nitrophenyl ester | ChEBI | | O,O-Diethyl-O-p-nitrophenylphosphoric acid | Kegg | | Diethyl p-nitrophenyl phosphoric acid | Generator | | O,O-Diethyl O-p-nitrophenyl phosphoric acid | Generator | | p-Nitrophenyl diethyl phosphoric acid | Generator | | Phosphate diethyl 4-nitrophenyl ester | Generator | | O,O-Diethyl-O-p-nitrophenylphosphate | Generator | | Diethyl P nitrophenyl phosphate | MeSH, HMDB | | Phosphate, diethyl-P-nitrophenyl | MeSH, HMDB | | Diethyl-P-nitrophenyl phosphate | MeSH, HMDB | | Fosfakol | MeSH, HMDB |
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| Chemical Formula | C10H14NO6P |
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| Average Molecular Weight | 275.195 |
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| Monoisotopic Molecular Weight | 275.055873697 |
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| IUPAC Name | diethyl 4-nitrophenyl phosphate |
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| Traditional Name | paraoxon |
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| CAS Registry Number | 311-45-5 |
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| SMILES | CCOP(=O)(OCC)OC1=CC=C(C=C1)[N+]([O-])=O |
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| InChI Identifier | InChI=1S/C10H14NO6P/c1-3-15-18(14,16-4-2)17-10-7-5-9(6-8-10)11(12)13/h5-8H,3-4H2,1-2H3 |
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| InChI Key | WYMSBXTXOHUIGT-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as nitrobenzenes. Nitrobenzenes are compounds containing a nitrobenzene moiety, which consists of a benzene ring with a carbon bearing a nitro group. |
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| Kingdom | Organic compounds |
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| Super Class | Benzenoids |
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| Class | Benzene and substituted derivatives |
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| Sub Class | Nitrobenzenes |
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| Direct Parent | Nitrobenzenes |
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| Alternative Parents | |
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| Substituents | - Nitrobenzene
- Phenoxy compound
- Nitroaromatic compound
- Dialkyl phosphate
- Organic phosphoric acid derivative
- Phosphoric acid ester
- Alkyl phosphate
- C-nitro compound
- Organic nitro compound
- Organic oxoazanium
- Organic 1,3-dipolar compound
- Propargyl-type 1,3-dipolar organic compound
- Allyl-type 1,3-dipolar organic compound
- Organic nitrogen compound
- Hydrocarbon derivative
- Organooxygen compound
- Organonitrogen compound
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic 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 | | Property | Value | Reference |
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| Melting Point | 300 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 3.64 mg/mL at 20 °C | Not Available | | LogP | 1.98 | SANGSTER (1994) |
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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. | 7.36 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 14.4097 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 0.92 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2162.9 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 422.2 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 163.9 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 228.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 123.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 614.9 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 | 585.4 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 145.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1225.3 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 514.9 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 | 1339.5 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 458.9 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 398.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 393.7 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 471.4 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 | 58.2 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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| Experimental GC-MS | GC-MS Spectrum - Paraoxon GC-EI-TOF (Non-derivatized) | splash10-0a4m-4910000000-9e80686be84777f12897 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Paraoxon GC-EI-TOF (Non-derivatized) | splash10-0a4m-4910000000-9e80686be84777f12897 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Paraoxon GC-MS (Non-derivatized) - 70eV, Positive | splash10-01ot-1490000000-49af8e137482487310cb | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Paraoxon GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | MS | Mass Spectrum (Electron Ionization) | splash10-054k-9840000000-ed91d6d60187378e30e6 | 2014-09-20 | Not Available | 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 - Paraoxon 35V, Positive-QTOF | splash10-00di-1490000000-8d48b56d5d32ad4f5d91 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 10V, Positive-QTOF | splash10-004i-1290000000-6438528767f006512903 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 20V, Positive-QTOF | splash10-0gb9-0090000000-775108cc711fdc42be34 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 40V, Positive-QTOF | splash10-004i-7900000000-0b2814cb44352b4577e1 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 10V, Negative-QTOF | splash10-00di-0190000000-cfd94300e89fae9a0128 | 2016-08-04 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 20V, Negative-QTOF | splash10-00di-1490000000-609dc6a1aa30dd298795 | 2016-08-04 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 40V, Negative-QTOF | splash10-00fr-2940000000-ab53630a454ec7edd2b2 | 2016-08-04 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 10V, Positive-QTOF | splash10-00dj-0090000000-4a26b1cf19be9be1c3a4 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 20V, Positive-QTOF | splash10-00di-0090000000-e9fc319d73d2521066ba | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 40V, Positive-QTOF | splash10-0udi-3940000000-a73e447d3d81875336b5 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 10V, Negative-QTOF | splash10-00e9-0090000000-d817a293e17ff8d661c9 | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 20V, Negative-QTOF | splash10-0002-0960000000-d7e8a3a00ae9564d521d | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Paraoxon 40V, Negative-QTOF | splash10-0pb9-2910000000-8234e0a0630a65f206b4 | 2021-09-25 | Wishart Lab | View Spectrum |
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