Tmic
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Record Information
Version2.0
Creation Date2014-08-30 21:03:25 UTC
Update Date2014-12-24 20:26:52 UTC
Accession NumberT3D4551
Identification
Common NameDoxylamine
ClassSmall Molecule
DescriptionHistamine H1 antagonist with pronounced sedative properties. It is used in allergies and as an antitussive, antiemetic, and hypnotic. Doxylamine has also been administered in veterinary applications and was formerly used in parkinsonism. [PubChem]
Compound Type
  • Amine
  • Antiemetic
  • Drug
  • Ether
  • Food Toxin
  • Histamine H1 Antagonist
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
2-(alpha-(2-(Dimethylamino)ethoxy)-alpha-methylbenzyl)pyridine
2-Dimethylaminoethoxyphenylmethyl-2-picoline
Dossilamina
Doxilamina
Doxilminio
Doxylaminum
N,N-Dimethyl-2-(1-phenyl-1-(2-pyridinyl)ethoxy)ethanamine
Phenyl-2-pyridylmethyl-beta-N,N-dimethylaminoethyl ether
Chemical FormulaC17H22N2O
Average Molecular Mass270.369 g/mol
Monoisotopic Mass270.173 g/mol
CAS Registry Number469-21-6
IUPAC Namedimethyl({2-[1-phenyl-1-(pyridin-2-yl)ethoxy]ethyl})amine
Traditional Namedoxylamine
SMILESCN(C)CCOC(C)(C1=CC=CC=C1)C1=CC=CC=N1
InChI IdentifierInChI=1/C17H22N2O/c1-17(20-14-13-19(2)3,15-9-5-4-6-10-15)16-11-7-8-12-18-16/h4-12H,13-14H2,1-3H3
InChI KeyInChIKey=HCFDWZZGGLSKEP-UHFFFAOYNA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as benzylethers. These are aromatic ethers with the general formula ROCR' (R = alkyl, aryl; R'=benzene).
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassBenzylethers
Direct ParentBenzylethers
Alternative Parents
Substituents
  • Benzylether
  • Pyridine
  • Heteroaromatic compound
  • Tertiary amine
  • Tertiary aliphatic amine
  • Azacycle
  • Organoheterocyclic compound
  • Ether
  • Dialkyl ether
  • Amine
  • Organic oxygen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceNot Available
Experimental Properties
PropertyValue
Melting Point< 25 °C
Boiling Point139 °C at 5.00E-01 mm Hg
Solubility1 g/ml (succinate salt)
LogP2.5
Predicted Properties
PropertyValueSource
Water Solubility0.54 g/LALOGPS
logP2.9ALOGPS
logP2.96ChemAxon
logS-2.7ALOGPS
pKa (Strongest Basic)8.87ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area25.36 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity82.24 m³·mol⁻¹ChemAxon
Polarizability31.09 ųChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a59-7900000000-24e4f3f90dbbb5862928View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-0040-0956300000-af11cf85a674e7db3735View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-001i-0910000000-b3cb895f045d519f2bf3View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-00kb-5597500000-8495062a84b32e776f33View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-qTof , Positivesplash10-0292-0940000000-f369442eba5344b3ecb4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-001i-1920000000-07b98b36c7ef5d9ad048View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-001i-0900000000-1ae1143763892a7aac22View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-001i-0900000000-460d58a5bb6a5eb5f55bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-0159-0900000000-34dc5c06413efae437daView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-014i-0900000000-8a5f15b863b7129c1288View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-014i-0900000000-072ffba5139b7324d27aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-00lr-0900000000-fdf3fc57eff19bfe8fd8View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-1190000000-e7b1a3b0a0368fc310dfView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00e9-5790000000-7402b4fd77afe325c64bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00di-9510000000-b9439d5014a66b7857ecView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-1290000000-1725573962a3041ca617View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014j-1690000000-44de19831bffecc1c412View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-009t-5900000000-caa39da176327be2a9c2View in MoNA
MSMass Spectrum (Electron Ionization)splash10-0ab9-9200000000-5a71de62862f9881c2a1View in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
Toxicity Profile
Route of ExposureReadily absorbed via the gastrointestinal tract.
Mechanism of ToxicityLike other antihistamines, doxylamine acts by competitively inhibiting histamine at H1 receptors. It also has substantial sedative and anticholinergic effects.
MetabolismHepatic. Half Life: 10 hours
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesUsed alone as a short-term sleep aid, in combination with other drugs as a night-time cold and allergy relief drug. Also used in combination with Vitamin B6 (pyridoxine) to prevent morning sickness in pregnant women.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsSigns of overdose include wheezing, tightness in the chest, fever, itching, bad cough, blue skin color, fits, swelling of face, lips, tongue, or throat.
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB00366
HMDB IDNot Available
PubChem Compound ID3162
ChEMBL IDCHEMBL1004
ChemSpider ID3050
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI ID51380
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkDoxylamine
References
Synthesis ReferenceNot Available
MSDST3D4551.pdf
General ReferencesNot Available
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Histamine receptor activity
Specific Function:
In peripheral tissues, the H1 subclass of histamine receptors mediates the contraction of smooth muscles, increase in capillary permeability due to contraction of terminal venules, and catecholamine release from adrenal medulla, as well as mediating neurotransmission in the central nervous system.
Gene Name:
HRH1
Uniprot ID:
P35367
Molecular Weight:
55783.61 Da
References
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [17016423 ]
  3. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
General Function:
Phosphatidylinositol phospholipase c activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM1
Uniprot ID:
P11229
Molecular Weight:
51420.375 Da
References
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [17016423 ]
General Function:
Zinc ion binding
Specific Function:
Binds and transactivates the retinoic acid response elements that control expression of the retinoic acid receptor beta 2 and alcohol dehydrogenase 3 genes. Transactivates both the phenobarbital responsive element module of the human CYP2B6 gene and the CYP3A4 xenobiotic response element.
Gene Name:
NR1I3
Uniprot ID:
Q14994
Molecular Weight:
39942.145 Da
References
  1. Dring AM, Anderson LE, Qamar S, Stoner MA: Rational quantitative structure-activity relationship (RQSAR) screen for PXR and CAR isoform-specific nuclear receptor ligands. Chem Biol Interact. 2010 Dec 5;188(3):512-25. doi: 10.1016/j.cbi.2010.09.018. Epub 2010 Oct 20. [20869355 ]