| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2012-09-06 15:16:50 UTC |
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| Update Date | 2022-03-07 02:51:48 UTC |
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| HMDB ID | HMDB0014967 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Diazepam |
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| Description | Diazepam is a benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of gamma-aminobutyric acid activity. It is used in the treatment of severe anxiety disorders, as a hypnotic in the short-term management of insomnia, as a sedative and premedicant, as an anticonvulsant, and in the management of alcohol withdrawal syndrome. (From Martindale, The Extra Pharmacopoeia, 30th ed, p589). |
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| Structure | CN1C2=C(C=C(Cl)C=C2)C(=NCC1=O)C1=CC=CC=C1 InChI=1S/C16H13ClN2O/c1-19-14-8-7-12(17)9-13(14)16(18-10-15(19)20)11-5-3-2-4-6-11/h2-9H,10H2,1H3 |
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| Synonyms | | Value | Source |
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| 7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one | ChEBI | | Methyl diazepinone | ChEBI | | Valium | ChEBI | | Diastat | Kegg | | Methyldiazepinone | HMDB | | Apaurin | MeSH, HMDB | | Faustan | MeSH, HMDB | | Relanium | MeSH, HMDB | | Seduxen | MeSH, HMDB | | Diazemuls | MeSH, HMDB | | Sibazon | MeSH, HMDB | | Stesolid | MeSH, HMDB |
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| Chemical Formula | C16H13ClN2O |
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| Average Molecular Weight | 284.74 |
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| Monoisotopic Molecular Weight | 284.071640755 |
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| IUPAC Name | 7-chloro-1-methyl-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-2-one |
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| Traditional Name | diazepam |
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| CAS Registry Number | 439-14-5 |
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| SMILES | CN1C2=C(C=C(Cl)C=C2)C(=NCC1=O)C1=CC=CC=C1 |
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| InChI Identifier | InChI=1S/C16H13ClN2O/c1-19-14-8-7-12(17)9-13(14)16(18-10-15(19)20)11-5-3-2-4-6-11/h2-9H,10H2,1H3 |
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| InChI Key | AAOVKJBEBIDNHE-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as 1,4-benzodiazepines. These are organic compounds containing a benzene ring fused to a 1,4-azepine. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Benzodiazepines |
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| Sub Class | 1,4-benzodiazepines |
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| Direct Parent | 1,4-benzodiazepines |
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| Alternative Parents | |
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| Substituents | - 1,4-benzodiazepine
- Alpha-amino acid or derivatives
- Aryl chloride
- Aryl halide
- Monocyclic benzene moiety
- Benzenoid
- Tertiary carboxylic acid amide
- Carboxamide group
- Ketimine
- Lactam
- Carboxylic acid derivative
- Azacycle
- Propargyl-type 1,3-dipolar organic compound
- Organic 1,3-dipolar compound
- Hydrocarbon derivative
- Organooxygen compound
- Organonitrogen compound
- Organochloride
- Organohalogen compound
- Organic oxygen compound
- Imine
- Organic nitrogen compound
- Carbonyl group
- Organic oxide
- Organopnictogen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic 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 | 125 - 126 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 0.012 g/L | Not Available | | LogP | 2.9 | Not Available |
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| Experimental Chromatographic Properties | Experimental Collision Cross Sections| Adduct Type | Data Source | CCS Value (Å2) | Reference |
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| [M+H]+ | CBM | 164.2 | 30932474 |
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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. | 6.09 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 13.9927 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.04 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 25.9 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2134.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 411.6 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 177.8 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 228.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 168.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 539.4 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 | 590.9 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 68.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1318.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 462.3 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 | 1428.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 348.3 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 354.9 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 326.6 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 143.2 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 | 8.8 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| Spectra |
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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 - Diazepam CI-B (Non-derivatized) | splash10-000i-0090000000-413ec5151b3a9fd41c47 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Diazepam EI-B (Non-derivatized) | splash10-0a4i-3690000000-3c601fed832ff090653a | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Diazepam EI-B (Non-derivatized) | splash10-0a59-1290000000-da27f63bddb3263e0063 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Diazepam CI-B (Non-derivatized) | splash10-000i-0090000000-413ec5151b3a9fd41c47 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Diazepam EI-B (Non-derivatized) | splash10-0a4i-3690000000-3c601fed832ff090653a | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - Diazepam EI-B (Non-derivatized) | splash10-0a59-1290000000-da27f63bddb3263e0063 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Diazepam GC-MS (Non-derivatized) - 70eV, Positive | splash10-05r0-1290000000-3f7c85c012a85c7146de | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Diazepam GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | MS | Mass Spectrum (Electron Ionization) | splash10-0a59-2490000000-41352db33c43d0b96876 | 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 - Diazepam LC-ESI-QTOF , positive-QTOF | splash10-000i-0090000000-bece36773a183e23bfff | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-QTOF , positive-QTOF | splash10-000i-0490000000-fbdfb84836374f27ffc7 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-QTOF , positive-QTOF | splash10-0006-0950000000-75d9ab376c968b83f255 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-QTOF , positive-QTOF | splash10-0006-0940000000-c585bcb21e1b3008adc1 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0a4i-0590000000-2c33d4fd40c36c20a4a6 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-000i-0090000000-695f91d3d5f2e1902be3 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-000i-0090000000-15d8ced2d42d3e292bb1 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-000i-0290000000-dfdaecb8b27bc1ad2c9e | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0fdx-0890000000-b77eb07ad61e288eeb19 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0006-0940000000-fb79dac6c46f730fb465 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0006-1930000000-a6412a87698303834034 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-000i-0090000000-31830c983339c0e0d918 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-000i-0090000000-1028986b8e3b82b4bf96 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-000i-0290000000-0c2338f41998da54e8c5 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0fdx-0890000000-48e88a1c67f0fc25384f | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0f6x-0940000000-ce56b132903858bd3b6b | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0006-1930000000-b61e92cac5094920cf32 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0a4i-0590000000-e26e1398541d17b6632e | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Diazepam LC-ESI-ITFT , positive-QTOF | splash10-0f7c-0590000000-541488ae806b0dbd97cb | 2017-09-14 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Diazepam 10V, Positive-QTOF | splash10-000i-0090000000-a82533f29e9cb01fa7fb | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Diazepam 20V, Positive-QTOF | splash10-000i-0090000000-79bbd4209063f20101f8 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Diazepam 40V, Positive-QTOF | splash10-0006-8970000000-5c77f50a4816eecfef04 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Diazepam 10V, Negative-QTOF | splash10-001i-0090000000-5a624d4584e17376f63c | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Diazepam 20V, Negative-QTOF | splash10-001i-0090000000-31d6bb00202f2493ec8d | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Diazepam 40V, Negative-QTOF | splash10-0pb9-9070000000-364b9c313a672f653207 | 2016-08-03 | Wishart Lab | View Spectrum |
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| Biological Properties |
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| Cellular Locations | - Cytoplasm
- Extracellular
- Membrane
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| Biospecimen Locations | |
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| Tissue Locations | Not Available |
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| Pathways | |
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| Normal Concentrations |
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| Blood | Expected but not Quantified | Not Quantified | Not Available | Not Available | Taking drug identified by DrugBank entry DB00829 | | details | | Blood | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | | Urine | Expected but not Quantified | Not Quantified | Not Available | Not Available | Taking drug identified by DrugBank entry DB00829 | | details | | Urine | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details |
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| Abnormal Concentrations |
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| Not Available |
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| Predicted Concentrations |
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| Blood | 0.000 uM | Adult (>18 years old) | Both | Normal | Predicted based on drug qualities | | Blood | 0.000 umol/mmol creatinine | Adult (>18 years old) | Both | Normal | Predicted based on drug qualities |
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| Associated Disorders and Diseases |
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| Disease References | None |
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| Associated OMIM IDs | None |
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| External Links |
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| DrugBank ID | DB00829 |
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| Phenol Explorer Compound ID | Not Available |
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| FooDB ID | FDB007103 |
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| KNApSAcK ID | Not Available |
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| Chemspider ID | 2908 |
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| KEGG Compound ID | C06948 |
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| BioCyc ID | Not Available |
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| BiGG ID | Not Available |
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| Wikipedia Link | Diazepam |
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| METLIN ID | Not Available |
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| PubChem Compound | 3016 |
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| PDB ID | DZP |
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| ChEBI ID | 49575 |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | C06948 |
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| MarkerDB ID | Not Available |
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| Good Scents ID | Not Available |
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| References |
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| Synthesis Reference | Not Available |
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| Material Safety Data Sheet (MSDS) | Not Available |
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| General References | - Mant A, Whicker SD, McManus P, Birkett DJ, Edmonds D, Dumbrell D: Benzodiazepine utilisation in Australia: report from a new pharmacoepidemiological database. Aust J Public Health. 1993 Dec;17(4):345-9. [PubMed:7911332 ]
- McLean MJ, Macdonald RL: Benzodiazepines, but not beta carbolines, limit high frequency repetitive firing of action potentials of spinal cord neurons in cell culture. J Pharmacol Exp Ther. 1988 Feb;244(2):789-95. [PubMed:2450203 ]
- Earley JV, Fryer RI, Ning RY: Quinazolines and 1,4-benzodiazepines. LXXXIX: Haptens useful in benzodiazepine immunoassay development. J Pharm Sci. 1979 Jul;68(7):845-50. [PubMed:458601 ]
- Oishi R, Nishibori M, Itoh Y, Saeki K: Diazepam-induced decrease in histamine turnover in mouse brain. Eur J Pharmacol. 1986 May 27;124(3):337-42. [PubMed:3089825 ]
- Usami N, Yamamoto T, Shintani S, Ishikura S, Higaki Y, Katagiri Y, Hara A: Substrate specificity of human 3(20)alpha-hydroxysteroid dehydrogenase for neurosteroids and its inhibition by benzodiazepines. Biol Pharm Bull. 2002 Apr;25(4):441-5. [PubMed:11995921 ]
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