| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2009-04-06 16:21:03 UTC |
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| Update Date | 2023-02-21 17:17:44 UTC |
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| HMDB ID | HMDB0012209 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Diethylphosphate |
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| Description | Diethylphosphate belongs to the class of organic compounds known as dialkyl phosphates. These are organic compounds containing a phosphate group that is linked to exactly two alkyl chain. Diethylphosphate exists in all living organisms, ranging from bacteria to humans. Diethylphosphate has been detected, but not quantified in, a few different foods, such as anatidaes (Anatidae), chickens (Gallus gallus), and domestic pigs (Sus scrofa domestica). This could make diethylphosphate a potential biomarker for the consumption of these foods. Diethylphosphate is a primary metabolite. Primary metabolites are metabolically or physiologically essential metabolites. They are directly involved in an organism’s growth, development or reproduction. Based on a literature review a small amount of articles have been published on Diethylphosphate. |
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| Structure | InChI=1S/C4H11O4P/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3,(H,5,6) |
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| Synonyms | | Value | Source |
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| Diethylphosphoric acid | ChEBI | | O,O-Diethylphosphoric acid | ChEBI | | O,O-Diethylphosphate | Generator | | Diethyl phosphate | MeSH | | Diethyl phosphate, chromium (+3) salt | MeSH | | Diethyl phosphate, sodium salt | MeSH | | DEP | HMDB | | Di-ethyl phosphate | HMDB | | Diethyl acid phosphate | HMDB | | Diethyl hydrogen phosphate | HMDB | | Diethyl phosphoric acid | HMDB | | DPF | HMDB | | Ethyl phosphate | HMDB | | O,O-Diethyl hydrogen phosphate | HMDB | | O,O-Diethyl phosphate | HMDB | | Phosphoric acid diethyl ester | HMDB | | Diethylphosphate | ChEBI | | Diethyl hydrogen phosphoric acid | Generator, HMDB |
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| Chemical Formula | C4H11O4P |
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| Average Molecular Weight | 154.1015 |
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| Monoisotopic Molecular Weight | 154.039495352 |
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| IUPAC Name | diethoxyphosphinic acid |
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| Traditional Name | diethyl phosphoric acid |
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| CAS Registry Number | 598-02-7 |
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| SMILES | CCOP(O)(=O)OCC |
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| InChI Identifier | InChI=1S/C4H11O4P/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3,(H,5,6) |
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| InChI Key | UCQFCFPECQILOL-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as dialkyl phosphates. These are organic compounds containing a phosphate group that is linked to exactly two alkyl chain. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Organic phosphoric acids and derivatives |
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| Sub Class | Phosphate esters |
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| Direct Parent | Dialkyl phosphates |
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| Alternative Parents | |
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| Substituents | - Dialkyl phosphate
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- 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 | 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 | Solid |
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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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| 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. | 3.84 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.6456 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 3.83 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 178.5 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1140.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 331.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 85.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 182.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 61.3 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 371.1 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 | 347.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 106.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 670.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 299.8 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 | 831.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 264.8 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 207.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 416.3 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 307.0 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 | 221.9 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Diethylphosphate,1TMS,isomer #1 | CCOP(=O)(OCC)O[Si](C)(C)C | 1174.9 | Semi standard non polar | 33892256 | | Diethylphosphate,1TMS,isomer #1 | CCOP(=O)(OCC)O[Si](C)(C)C | 1159.6 | Standard non polar | 33892256 | | Diethylphosphate,1TMS,isomer #1 | CCOP(=O)(OCC)O[Si](C)(C)C | 1308.3 | Standard polar | 33892256 | | Diethylphosphate,1TBDMS,isomer #1 | CCOP(=O)(OCC)O[Si](C)(C)C(C)(C)C | 1399.6 | Semi standard non polar | 33892256 | | Diethylphosphate,1TBDMS,isomer #1 | CCOP(=O)(OCC)O[Si](C)(C)C(C)(C)C | 1384.1 | Standard non polar | 33892256 | | Diethylphosphate,1TBDMS,isomer #1 | CCOP(=O)(OCC)O[Si](C)(C)C(C)(C)C | 1458.2 | Standard polar | 33892256 |
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| General References | - Timchalk C, Busby A, Campbell JA, Needham LL, Barr DB: Comparative pharmacokinetics of the organophosphorus insecticide chlorpyrifos and its major metabolites diethylphosphate, diethylthiophosphate and 3,5,6-trichloro-2-pyridinol in the rat. Toxicology. 2007 Jul 31;237(1-3):145-57. Epub 2007 May 18. [PubMed:17590257 ]
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