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Version5.0
StatusExpected but not Quantified
Creation Date2012-09-06 15:16:51 UTC
Update Date2022-03-07 02:51:50 UTC
HMDB IDHMDB0015034
Secondary Accession Numbers
  • HMDB15034
Metabolite Identification
Common NameTriazolam
DescriptionTriazolam is only found in individuals that have used or taken this drug.It is withdrawn in the United Kingdom due to risk of psychiatric adverse drug reactions. This drug continues to be available in the U.S. Internationally, triazolam is a Schedule IV drug under the Convention on Psychotropic Substances.Benzodiazepines bind nonspecifically to bezodiazepine receptors BNZ1, which mediates sleep, and BNZ2, which affects affects muscle relaxation, anticonvulsant activity, motor coordination, and memory. As benzodiazepine receptors are thought to be coupled to gamma-aminobutyric acid-A (GABAA) receptors, this enhances the effects of GABA by increasing GABA affinity for the GABA receptor. Binding of GABA to the site opens the chloride channel, resulting in a hyperpolarized cell membrane that prevents further excitation of the cell.
Structure
Data?1582753250
Synonyms
ValueSource
HalcionChEBI
DEA no. 2887HMDB
Genpharm brand OF triazolamHMDB
Apo triazoHMDB
Apo-triazoHMDB
Apotex brand OF triazolamHMDB
Gen triazolamHMDB
Gerard brand OF triazolamHMDB
Pfizer brand OF triazolamHMDB
Gen-triazolamHMDB
Triazolam pfizer brandHMDB
TrilamHMDB
Chemical FormulaC17H12Cl2N4
Average Molecular Weight343.21
Monoisotopic Molecular Weight342.043901818
IUPAC Name12-chloro-9-(2-chlorophenyl)-3-methyl-2,4,5,8-tetraazatricyclo[8.4.0.0²,⁶]tetradeca-1(10),3,5,8,11,13-hexaene
Traditional Nametriazolam
CAS Registry Number28911-01-5
SMILES
CC1=NN=C2CN=C(C3=CC=CC=C3Cl)C3=C(C=CC(Cl)=C3)N12
InChI Identifier
InChI=1S/C17H12Cl2N4/c1-10-21-22-16-9-20-17(12-4-2-3-5-14(12)19)13-8-11(18)6-7-15(13)23(10)16/h2-8H,9H2,1H3
InChI KeyJOFWLTCLBGQGBO-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 1,2,4-triazolo[4,3-a][1,4]benzodiazepines. These are aromatic compounds containing a 1,4-benzodiazepine fused to and sharing a nitrogen atom with a 1,2,4-triazole ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzodiazepines
Sub Class1,4-benzodiazepines
Direct Parent1,2,4-triazolo[4,3-a][1,4]benzodiazepines
Alternative Parents
Substituents
  • 1,2,4-triazolo[4,3-a][1,4]benzodiazepine
  • Chlorobenzene
  • Halobenzene
  • Aryl chloride
  • Aryl halide
  • Monocyclic benzene moiety
  • Benzenoid
  • Azole
  • Heteroaromatic compound
  • 1,2,4-triazole
  • Ketimine
  • Azacycle
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Imine
  • Organopnictogen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Organohalogen compound
  • Organochloride
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point233 - 235 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.018 g/LNot Available
LogP5.5Not Available
Experimental Chromatographic Properties

Experimental Collision Cross Sections

Adduct TypeData SourceCCS Value (Å2)Reference
[M+H]+CBM172.430932474
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.018 g/LALOGPS
logP2.94ALOGPS
logP2.89ChemAxon
logS-4.3ALOGPS
pKa (Strongest Acidic)18.08ChemAxon
pKa (Strongest Basic)4.32ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area43.07 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity103.68 m³·mol⁻¹ChemAxon
Polarizability34.19 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-205.47130932474
DeepCCS[M+Na]+180.69830932474
AllCCS[M+H]+175.332859911
AllCCS[M+H-H2O]+171.932859911
AllCCS[M+NH4]+178.432859911
AllCCS[M+Na]+179.332859911
AllCCS[M-H]-173.732859911
AllCCS[M+Na-2H]-172.732859911
AllCCS[M+HCOO]-171.732859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
TriazolamCC1=NN=C2CN=C(C3=CC=CC=C3Cl)C3=C(C=CC(Cl)=C3)N124080.4Standard polar33892256
TriazolamCC1=NN=C2CN=C(C3=CC=CC=C3Cl)C3=C(C=CC(Cl)=C3)N123029.5Standard non polar33892256
TriazolamCC1=NN=C2CN=C(C3=CC=CC=C3Cl)C3=C(C=CC(Cl)=C3)N122974.5Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Triazolam GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-8089000000-80a2c04b55ba4ec57f7d2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Triazolam GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
MSMass Spectrum (Electron Ionization)splash10-0imr-4954000000-75bcea16a1182103168f2014-09-20Not AvailableView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Triazolam 35V, Positive-QTOFsplash10-0006-0019000000-c8c0d3cd9a19765055122021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 10V, Positive-QTOFsplash10-0006-0019000000-1a48dd0b8ad68d4c71522016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 20V, Positive-QTOFsplash10-0006-0019000000-299396e073c781434d642016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 40V, Positive-QTOFsplash10-0ke9-1393000000-9375b44f5c2300bb98ba2016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 10V, Negative-QTOFsplash10-0006-0019000000-45c89b536091edda4e232016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 20V, Negative-QTOFsplash10-0006-0029000000-ff0a3ff2d1d3a8b130882016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 40V, Negative-QTOFsplash10-0fai-0390000000-188cc5d505add9b260712016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 10V, Positive-QTOFsplash10-0006-0009000000-66a85ec67775de1bf91b2021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 20V, Positive-QTOFsplash10-0006-0009000000-66a85ec67775de1bf91b2021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 40V, Positive-QTOFsplash10-03dr-1289000000-ce967160c7f8152bf73c2021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 10V, Negative-QTOFsplash10-0006-0009000000-3ebd0ee81f9052f5a37b2021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 20V, Negative-QTOFsplash10-053u-6009000000-48a129158117535fca222021-10-11Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Triazolam 40V, Negative-QTOFsplash10-001i-9152000000-8ffd20b7c50c68f2a6952021-10-11Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Membrane
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00897 details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00897 details
Abnormal Concentrations
Not Available
Predicted Concentrations
BiospecimenValueOriginal ageOriginal sexOriginal conditionComments
Blood0.000 uMAdult (>18 years old)BothNormalPredicted based on drug qualities
Blood0.000 umol/mmol creatinineAdult (>18 years old)BothNormalPredicted based on drug qualities
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB00897
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID5355
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkTriazolam
METLIN IDNot Available
PubChem Compound5556
PDB IDNot Available
ChEBI ID9674
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Oelschlager H: [Chemical and pharmacologic aspects of benzodiazepines]. Schweiz Rundsch Med Prax. 1989 Jul 4;78(27-28):766-72. [PubMed:2570451 ]
  2. Rickels K: The clinical use of hypnotics: indications for use and the need for a variety of hypnotics. Acta Psychiatr Scand Suppl. 1986;332:132-41. [PubMed:2883820 ]
  3. Tokunaga S, Takeda Y, Shinomiya K, Hirase M, Kamei C: Effects of some H1-antagonists on the sleep-wake cycle in sleep-disturbed rats. J Pharmacol Sci. 2007 Feb;103(2):201-6. Epub 2007 Feb 8. [PubMed:17287588 ]
  4. Veje JO, Andersen K, Gjesing S, Kielgast H: [Prescription of tranquilizers and hypnotics in the municipality of Holbaek]. Ugeskr Laeger. 1989 Aug 21;151(34):2134-6. [PubMed:2773144 ]
  5. Noguchi H, Kitazumi K, Mori M, Shiba T: Electroencephalographic properties of zaleplon, a non-benzodiazepine sedative/hypnotic, in rats. J Pharmacol Sci. 2004 Mar;94(3):246-51. [PubMed:15037809 ]

Only showing the first 10 proteins. There are 25 proteins in total.

Enzymes

General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular weight:
57255.585
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
  2. Williams JA, Ring BJ, Cantrell VE, Jones DR, Eckstein J, Ruterbories K, Hamman MA, Hall SD, Wrighton SA: Comparative metabolic capabilities of CYP3A4, CYP3A5, and CYP3A7. Drug Metab Dispos. 2002 Aug;30(8):883-91. [PubMed:12124305 ]
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan.
Gene Name:
CYP2C9
Uniprot ID:
P11712
Molecular weight:
55627.365
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
Gene Name:
CYP3A5
Uniprot ID:
P20815
Molecular weight:
57108.065
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
Gene Name:
CYP3A7
Uniprot ID:
P24462
Molecular weight:
57525.03
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. In the epoxidation of arachidonic acid it generates only 14,15- and 11,12-cis-epoxyeicosatrienoic acids. It is the principal enzyme responsible for the metabolism the anti-cancer drug paclitaxel (taxol).
Gene Name:
CYP2C8
Uniprot ID:
P10632
Molecular weight:
55824.275
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
General function:
Involved in ion transport
Specific function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel
Gene Name:
GABRG2
Uniprot ID:
P18507
Molecular weight:
54161.8
References
  1. Mohler H, Fritschy JM, Rudolph U: A new benzodiazepine pharmacology. J Pharmacol Exp Ther. 2002 Jan;300(1):2-8. [PubMed:11752090 ]
  2. Riss J, Cloyd J, Gates J, Collins S: Benzodiazepines in epilepsy: pharmacology and pharmacokinetics. Acta Neurol Scand. 2008 Aug;118(2):69-86. doi: 10.1111/j.1600-0404.2008.01004.x. Epub 2008 Mar 31. [PubMed:18384456 ]
General function:
Signal transduction mechanisms
Specific function:
Responsible for the manifestation of peripheral-type benzodiazepine recognition sites and is most likely to comprise binding domains for benzodiazepines and isoquinoline carboxamides. May play a role in the transport of porphyrins and heme. Plays a role in the transport of cholesterol across mitochondrial membranes in steroidogenic cells
Gene Name:
TSPO
Uniprot ID:
P30536
Molecular weight:
18778.7
References
  1. Park CH, Carboni E, Wood PL, Gee KW: Characterization of peripheral benzodiazepine type sites in a cultured murine BV-2 microglial cell line. Glia. 1996 Jan;16(1):65-70. [PubMed:8787774 ]
General function:
Involved in ion transport
Specific function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel
Gene Name:
GABRA1
Uniprot ID:
P14867
Molecular weight:
51801.4
References
  1. Mohler H, Fritschy JM, Rudolph U: A new benzodiazepine pharmacology. J Pharmacol Exp Ther. 2002 Jan;300(1):2-8. [PubMed:11752090 ]
  2. Riss J, Cloyd J, Gates J, Collins S: Benzodiazepines in epilepsy: pharmacology and pharmacokinetics. Acta Neurol Scand. 2008 Aug;118(2):69-86. doi: 10.1111/j.1600-0404.2008.01004.x. Epub 2008 Mar 31. [PubMed:18384456 ]
General function:
Involved in ion transport
Specific function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel
Gene Name:
GABRA2
Uniprot ID:
P47869
Molecular weight:
51325.9
References
  1. Mohler H, Fritschy JM, Rudolph U: A new benzodiazepine pharmacology. J Pharmacol Exp Ther. 2002 Jan;300(1):2-8. [PubMed:11752090 ]
  2. Riss J, Cloyd J, Gates J, Collins S: Benzodiazepines in epilepsy: pharmacology and pharmacokinetics. Acta Neurol Scand. 2008 Aug;118(2):69-86. doi: 10.1111/j.1600-0404.2008.01004.x. Epub 2008 Mar 31. [PubMed:18384456 ]
General function:
Involved in ion transport
Specific function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel
Gene Name:
GABRA3
Uniprot ID:
P34903
Molecular weight:
55164.1
References
  1. Mohler H, Fritschy JM, Rudolph U: A new benzodiazepine pharmacology. J Pharmacol Exp Ther. 2002 Jan;300(1):2-8. [PubMed:11752090 ]
  2. Riss J, Cloyd J, Gates J, Collins S: Benzodiazepines in epilepsy: pharmacology and pharmacokinetics. Acta Neurol Scand. 2008 Aug;118(2):69-86. doi: 10.1111/j.1600-0404.2008.01004.x. Epub 2008 Mar 31. [PubMed:18384456 ]

Only showing the first 10 proteins. There are 25 proteins in total.