| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-06 15:16:49 UTC |
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| Update Date | 2022-03-07 02:51:36 UTC |
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| HMDB ID | HMDB0014397 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Phenytoin |
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| Description | An anticonvulsant that is used in a wide variety of seizures. It is also an anti-arrhythmic and a muscle relaxant. The mechanism of therapeutic action is not clear, although several cellular actions have been described including effects on ion channels, active transport, and general membrane stabilization. The mechanism of its muscle relaxant effect appears to involve a reduction in the sensitivity of muscle spindles to stretch. Phenytoin has been proposed for several other therapeutic uses, but its use has been limited by its many adverse effects and interactions with other drugs. [PubChem] |
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| Structure | O=C1NC(=O)C(N1)(C1=CC=CC=C1)C1=CC=CC=C1 InChI=1S/C15H12N2O2/c18-13-15(17-14(19)16-13,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H2,16,17,18,19) |
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| Synonyms | | Value | Source |
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| 5,5-Diphenyl-imidazolidine-2,4-dione | ChEBI | | 5,5-Diphenylimidazolidine-2,4-dione | ChEBI | | 5,5-Diphenyltetrahydro-1H-2,4-imidazoledione | ChEBI | | DILANTIN | ChEBI | | Fenitoina | ChEBI | | PHENTYTOIN | ChEBI | | Phenytoine | ChEBI | | Phenytoinum | ChEBI | | 5,5-Diphenylhydantoin | HMDB | | 5,5-Dwufenylohydantoina | HMDB | | Dihydantoin | HMDB | | Diphenylan sodium | HMDB | | Diphenylhydantoin | HMDB | | Diphenylhydatanoin | HMDB | | Phenytoin sodium | HMDB | | Difenin | HMDB | | Diphenylhydantoinate, sodium | HMDB | | Park davis brand OF phenytoin | HMDB | | Pfizer brand OF phenytoin | HMDB | | Sodium diphenylhydantoinate | HMDB | | Dihydan | HMDB | | Epamin | HMDB | | Phenytoin pfizer brand | HMDB | | Antisacer | HMDB | | Epanutin | HMDB | | Hydantol | HMDB | | Phenytoin phizer brand | HMDB | | Fenitoin | HMDB | | Phizer brand OF phenytoin | HMDB |
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| Chemical Formula | C15H12N2O2 |
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| Average Molecular Weight | 252.268 |
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| Monoisotopic Molecular Weight | 252.089877638 |
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| IUPAC Name | 5,5-diphenylimidazolidine-2,4-dione |
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| Traditional Name | silantin |
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| CAS Registry Number | 57-41-0 |
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| SMILES | O=C1NC(=O)C(N1)(C1=CC=CC=C1)C1=CC=CC=C1 |
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| InChI Identifier | InChI=1S/C15H12N2O2/c18-13-15(17-14(19)16-13,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H2,16,17,18,19) |
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| InChI Key | CXOFVDLJLONNDW-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as phenylhydantoins. These are heterocyclic aromatic compounds containing an imiazolidinedione moiety substituted by a phenyl group. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Azolidines |
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| Sub Class | Imidazolidines |
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| Direct Parent | Phenylhydantoins |
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| Alternative Parents | |
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| Substituents | - Diphenylmethane
- 5-phenylhydantoin
- Phenylimidazolidine
- Alpha-amino acid or derivatives
- 5-monosubstituted hydantoin
- N-acyl urea
- Ureide
- Monocyclic benzene moiety
- Benzenoid
- Dicarboximide
- Urea
- Carbonic acid derivative
- Carboxylic acid derivative
- Azacycle
- Hydrocarbon derivative
- Organic oxide
- Organooxygen compound
- Organonitrogen compound
- Organopnictogen compound
- Organic oxygen compound
- Carbonyl group
- Organic nitrogen compound
- Aromatic heteromonocyclic compound
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| Molecular Framework | Aromatic 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 | |
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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 | 286 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 0.071 g/L | Not Available | | LogP | 2.2 | Not Available |
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| Experimental Chromatographic Properties | Experimental Collision Cross Sections |
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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. | 6.16 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 13.5135 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.04 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2383.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 406.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 165.9 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 224.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 189.0 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 523.3 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 | 672.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 63.3 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1233.8 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 477.4 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 | 1401.5 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 325.9 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 361.9 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 296.4 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 164.3 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 | 27.7 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Phenytoin,1TMS,isomer #1 | C[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2374.4 | Semi standard non polar | 33892256 | | Phenytoin,1TMS,isomer #1 | C[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2298.6 | Standard non polar | 33892256 | | Phenytoin,1TMS,isomer #1 | C[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 3348.5 | Standard polar | 33892256 | | Phenytoin,1TMS,isomer #2 | C[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=CC=C1 | 2407.6 | Semi standard non polar | 33892256 | | Phenytoin,1TMS,isomer #2 | C[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=CC=C1 | 2347.5 | Standard non polar | 33892256 | | Phenytoin,1TMS,isomer #2 | C[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=CC=C1 | 3555.9 | Standard polar | 33892256 | | Phenytoin,2TMS,isomer #1 | C[Si](C)(C)N1C(=O)N([Si](C)(C)C)C(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2163.8 | Semi standard non polar | 33892256 | | Phenytoin,2TMS,isomer #1 | C[Si](C)(C)N1C(=O)N([Si](C)(C)C)C(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2332.8 | Standard non polar | 33892256 | | Phenytoin,2TMS,isomer #1 | C[Si](C)(C)N1C(=O)N([Si](C)(C)C)C(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2948.4 | Standard polar | 33892256 | | Phenytoin,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2684.1 | Semi standard non polar | 33892256 | | Phenytoin,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2509.6 | Standard non polar | 33892256 | | Phenytoin,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 3377.5 | Standard polar | 33892256 | | Phenytoin,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=CC=C1 | 2655.2 | Semi standard non polar | 33892256 | | Phenytoin,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=CC=C1 | 2539.5 | Standard non polar | 33892256 | | Phenytoin,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=CC=C1 | 3524.0 | Standard polar | 33892256 | | Phenytoin,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N1C(=O)N([Si](C)(C)C(C)(C)C)C(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2665.4 | Semi standard non polar | 33892256 | | Phenytoin,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N1C(=O)N([Si](C)(C)C(C)(C)C)C(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 2746.6 | Standard non polar | 33892256 | | Phenytoin,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N1C(=O)N([Si](C)(C)C(C)(C)C)C(C2=CC=CC=C2)(C2=CC=CC=C2)C1=O | 3008.2 | Standard 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 - Phenytoin EI-B (Non-derivatized) | splash10-003r-7930000000-447969b9c242748dd943 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin CI-B (Non-derivatized) | splash10-0udi-0090000000-4176043a7a73caee2667 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin EI-B (Non-derivatized) | splash10-0zgi-5960000000-e1dcb47a1c082f04f456 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin CI-B (Non-derivatized) | splash10-0udi-1390000000-22c71a7e4dbf9c7acab5 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin CI-B (Non-derivatized) | splash10-0udi-2190000000-50174e33af92b04d1a6e | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin EI-B (Non-derivatized) | splash10-003r-7930000000-447969b9c242748dd943 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin CI-B (Non-derivatized) | splash10-0udi-0090000000-4176043a7a73caee2667 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin EI-B (Non-derivatized) | splash10-0zgi-5960000000-e1dcb47a1c082f04f456 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin CI-B (Non-derivatized) | splash10-0udi-1390000000-22c71a7e4dbf9c7acab5 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Phenytoin CI-B (Non-derivatized) | splash10-0udi-2190000000-50174e33af92b04d1a6e | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Phenytoin GC-MS (Non-derivatized) - 70eV, Positive | splash10-00lr-0920000000-edf72a4c297e405a2600 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Phenytoin GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Phenytoin GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | MS | Mass Spectrum (Electron Ionization) | splash10-0f89-4940000000-2a0dda513d9f63dc6610 | 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 - Phenytoin LC-ESI-qTof , Positive-QTOF | splash10-001i-0950000000-a80521d4dc3976a29b2c | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-qTof , Positive-QTOF | splash10-0ue9-2900000000-a58471ae75fa7319c03d | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , negative-QTOF | splash10-0udi-0090000000-aaae845342f345f89695 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , negative-QTOF | splash10-0udi-0390000000-f8da1896c569c120faa2 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , negative-QTOF | splash10-0udi-0920000000-07c872b05aade63c402b | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , negative-QTOF | splash10-0udi-0900000000-be6790637be99260525e | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , negative-QTOF | splash10-0udi-0900000000-9a17fa0b243c8282f3ba | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , negative-QTOF | splash10-0udi-0900000000-69302626996b2b24c153 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , positive-QTOF | splash10-0fai-0690000000-f9eeceb82d117127f6ea | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , positive-QTOF | splash10-001i-0910000000-9edcfc62014a6aa7778f | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , positive-QTOF | splash10-001i-0900000000-d4dde5db680fb7722a49 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , positive-QTOF | splash10-0ue9-0900000000-482874b33812389ae726 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , positive-QTOF | splash10-0udi-0900000000-44f07dc29daf8cdf80c2 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin LC-ESI-QFT , positive-QTOF | splash10-0udi-1900000000-1241292d531ed37544c7 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin , positive-QTOF | splash10-001i-0950000000-a80521d4dc3976a29b2c | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin , positive-QTOF | splash10-0ue9-2900000000-a58471ae75fa7319c03d | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin 45V, Negative-QTOF | splash10-0udi-0920000000-97a0af331da9afcf54b8 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin 60V, Negative-QTOF | splash10-0udi-0900000000-9918b159c9e50b11016f | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Phenytoin 90V, Negative-QTOF | splash10-0udi-0900000000-c2ba734800c5db1b68cf | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenytoin 10V, Positive-QTOF | splash10-0udi-0290000000-168825c4263cc790be0b | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenytoin 20V, Positive-QTOF | splash10-0f89-0950000000-27e345a92f7734114654 | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenytoin 40V, Positive-QTOF | splash10-0uyi-1900000000-5828317e8dac2d03e548 | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenytoin 10V, Negative-QTOF | splash10-0udi-0090000000-e1551530faa59a549515 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenytoin 20V, Negative-QTOF | splash10-0udi-1190000000-354c210fa308dab349f3 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phenytoin 40V, Negative-QTOF | splash10-0006-9700000000-d5833bfc084997249fe4 | 2016-08-03 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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