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Record Information
StatusExpected but not Quantified
Creation Date2012-09-06 15:16:50 UTC
Update Date2020-02-26 21:40:19 UTC
Secondary Accession Numbers
  • HMDB14771
Metabolite Identification
Common NameDexmedetomidine
DescriptionDexmedetomidine is only found in individuals that have used or taken this drug. It is an agonist of receptors, adrenergic alpha-2 that is used in veterinary medicine for its analgesic and sedative properties. It is the racemate of dexmedetomidine. [PubChem]Dexmedetomidine is a specific and selective alpha-2 adrenoceptor agonist. By binding to the presynaptic alpha-2 adrenoceptors, it inhibits the release if norepinephrine, therefore, terminate the propagation of pain signals. Activation of the postsynaptic alpha-2 adrenoceptors inhibits the sympathetic activity decreases blood pressure and heart rate.
Hospira brand OF dexmedetomidine hydrochlorideHMDB
Hydrochloride, dexmedetomidineHMDB
Dexmedetomidine hydrochlorideHMDB
Chemical FormulaC13H16N2
Average Molecular Weight200.2795
Monoisotopic Molecular Weight200.131348522
IUPAC Name4-[(1S)-1-(2,3-dimethylphenyl)ethyl]-1H-imidazole
Traditional Namedexmedetomidine hcl
CAS Registry Number113775-47-6
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as o-xylenes. These are aromatic compounds that contain a o-xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups at the 1- and 2-positions.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassXylenes
Direct Parento-Xylenes
Alternative Parents
  • O-xylene
  • Heteroaromatic compound
  • Imidazole
  • Azole
  • Azacycle
  • Organoheterocyclic compound
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors

Biological location:


Industrial application:

Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.17 g/LNot Available
LogP2.8Not Available
Predicted Properties
Water Solubility0.17 g/LALOGPS
pKa (Strongest Acidic)14.09ChemAxon
pKa (Strongest Basic)6.54ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area28.68 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity62.98 m³·mol⁻¹ChemAxon
Polarizability23.32 ųChemAxon
Number of Rings2ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-001r-3900000000-1af3ca78fb22ea06ac9dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0290000000-a37775586d59da8a5c1dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0uk9-1950000000-1f473c29f9a4392cf069Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-1900000000-05caba97ecbe584d9c19Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0900000000-b4978ed90cadc637e3fbSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-1900000000-b7da7a8cb234743e8c21Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0awc-4900000000-2ac7ce450e11fc5753d7Spectrum
Biological Properties
Cellular Locations
  • Membrane
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Normal Concentrations
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00633 details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00633 details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB00633
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID4470605
KEGG Compound IDC07450
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkDexmedetomidine
METLIN IDNot Available
PubChem Compound5311068
PDB IDNot Available
ChEBI ID4466
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB ID
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available


General function:
Involved in monooxygenase activity
Specific function:
Metabolizes several precarcinogens, drugs, and solvents to reactive metabolites. Inactivates a number of drugs and xenobiotics and also bioactivates many xenobiotic substrates to their hepatotoxic or carcinogenic forms.
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  1. Avsaroglu H, Bull S, Maas-Bakker RF, Scherpenisse P, Van Lith HA, Bergwerff AA, Hellebrekers LJ, Van Zutphen LF, Fink-Gremmels J: Differences in hepatic cytochrome P450 activity correlate with the strain-specific biotransformation of medetomidine in AX/JU and IIIVO/JU inbred rabbits. J Vet Pharmacol Ther. 2008 Aug;31(4):368-77. doi: 10.1111/j.1365-2885.2008.00969.x. [PubMed:18638298 ]
  2. Duhamel MC, Troncy E, Beaudry F: Metabolic stability and determination of cytochrome P450 isoenzymes' contribution to the metabolism of medetomidine in dog liver microsomes. Biomed Chromatogr. 2010 Aug;24(8):868-77. doi: 10.1002/bmc.1379. [PubMed:20020418 ]
General function:
Involved in monooxygenase activity
Specific function:
Responsible for the metabolism of many drugs and environmental chemicals that it oxidizes. It is involved in the metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic antidepressants.
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  1. Rodrigues AD, Roberts EM: The in vitro interaction of dexmedetomidine with human liver microsomal cytochrome P4502D6 (CYP2D6). Drug Metab Dispos. 1997 May;25(5):651-5. [PubMed:9152607 ]
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.
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  1. Konstandi M, Kostakis D, Harkitis P, Marselos M, Johnson EO, Adamidis K, Lang MA: Role of adrenoceptor-linked signaling pathways in the regulation of CYP1A1 gene expression. Biochem Pharmacol. 2005 Jan 15;69(2):277-87. [PubMed:15627480 ]
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. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.
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  1. Konstandi M, Lang MA, Kostakis D, Johnson EO, Marselos M: Predominant role of peripheral catecholamines in the stress-induced modulation of CYP1A2 inducibility by benzo(alpha)pyrene. Basic Clin Pharmacol Toxicol. 2008 Jan;102(1):35-44. Epub 2007 Oct 31. [PubMed:17973897 ]
  2. Konstandi M, Kostakis D, Harkitis P, Johnson EO, Marselos M, Adamidis K, Lang MA: Benzo(alpha)pyrene-induced up-regulation of CYP1A2 gene expression: role of adrenoceptor-linked signaling pathways. Life Sci. 2006 Jun 20;79(4):331-41. Epub 2006 Feb 28. [PubMed:16510159 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
Alpha-2 adrenergic receptors mediate the catecholamine- induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is oxymetazoline > clonidine > epinephrine > norepinephrine > phenylephrine > dopamine > p-synephrine > p-tyramine > serotonin = p-octopamine. For antagonists, the rank order is yohimbine > phentolamine = mianserine > chlorpromazine = spiperone = prazosin > propanolol > alprenolol = pindolol
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  1. Fairbanks CA, Stone LS, Kitto KF, Nguyen HO, Posthumus IJ, Wilcox GL: alpha(2C)-Adrenergic receptors mediate spinal analgesia and adrenergic-opioid synergy. J Pharmacol Exp Ther. 2002 Jan;300(1):282-90. [PubMed:11752127 ]
  2. Scheibner J, Trendelenburg AU, Hein L, Starke K, Blandizzi C: Alpha 2-adrenoceptors in the enteric nervous system: a study in alpha 2A-adrenoceptor-deficient mice. Br J Pharmacol. 2002 Feb;135(3):697-704. [PubMed:11834617 ]
  3. Davies MF, Tsui J, Flannery JA, Li X, DeLorey TM, Hoffman BB: Activation of alpha2 adrenergic receptors suppresses fear conditioning: expression of c-Fos and phosphorylated CREB in mouse amygdala. Neuropsychopharmacology. 2004 Feb;29(2):229-39. [PubMed:14583739 ]
  4. Dawson C, Ma D, Chow A, Maze M: Dexmedetomidine enhances analgesic action of nitrous oxide: mechanisms of action. Anesthesiology. 2004 Apr;100(4):894-904. [PubMed:15087625 ]
  5. Ozdogan UK, Lahdesmaki J, Hakala K, Scheinin M: The involvement of alpha 2A-adrenoceptors in morphine analgesia, tolerance and withdrawal in mice. Eur J Pharmacol. 2004 Aug 23;497(2):161-71. [PubMed:15306201 ]
  6. Menon DV, Wang Z, Fadel PJ, Arbique D, Leonard D, Li JL, Victor RG, Vongpatanasin W: Central sympatholysis as a novel countermeasure for cocaine-induced sympathetic activation and vasoconstriction in humans. J Am Coll Cardiol. 2007 Aug 14;50(7):626-33. Epub 2007 Jul 30. [PubMed:17692748 ]