Record Information
Version2.0
Creation Date2009-07-21 20:26:15 UTC
Update Date2014-12-24 20:25:50 UTC
Accession NumberT3D2708
Identification
Common NameEthchlorvynol
ClassSmall Molecule
DescriptionEthchlorvynol is only found in individuals that have used or taken this drug. It is a sedative and hypnotic drug. It has been used to treat insomnia, but has been largely superseded and is only offered where an intolerance or allergy to other drugs exists. [Wikipedia]Although the exact mechanism of action is unknown, ethchlorvynol appears to depress the central nervous system in a manner similar to that of barbiturates. Barbiturates bind at a distinct binding sites associated with a Cl- ionopore at the GABAA receptor, increasing the duration of time for which the Cl- ionopore is open. The post-synaptic inhibitory effect of GABA in the thalamus is, therefore, prolonged.
Compound Type
  • Drug
  • Hypnotic and Sedative
  • Metabolite
  • Organic Compound
  • Organochloride
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
1-chloro-3-ethyl-1-penten-4-yn-3-ol
1-Chloro-3-ethyl-pent-1-en-4-yn-3-ol
3-(beta-chlorovinyl)-1-pentyn-3-ol
3-(β-chlorovinyl)-1-pentyn-3-ol
Aethyl-chlorvynol
Arvynol
Etchlorvinolo
Ethchlorovynol
Ethchlorvinol
Ethchlorvinyl
Ethclorvynol
Ethochlorvynol
Ethychlorvynol
ethyl β-chlorovinyl ethynyl carbinol
Nostel
Placidyl
Roeridorm
Serenesil
β-chlorovinyl ethyl ethynyl carbinol
Chemical FormulaC7H9ClO
Average Molecular Mass144.599 g/mol
Monoisotopic Mass144.034 g/mol
CAS Registry Number113-18-8
IUPAC Name1-chloro-3-ethylpent-1-en-4-yn-3-ol
Traditional Nameetclorvinol
SMILES[H]\C(Cl)=C(\[H])C(O)(CC)C#C
InChI IdentifierInChI=1/C7H9ClO/c1-3-7(9,4-2)5-6-8/h1,5-6,9H,4H2,2H3/b6-5+
InChI KeyInChIKey=ZEHYJZXQEQOSON-AATRIKPKNA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as ynones. These are organic compounds containing the ynone functional group, an alpha,beta unsaturated ketone group with the general structure RC#C-C(=O)R' (R' not H).
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentYnones
Alternative Parents
Substituents
  • Ynone
  • Tertiary alcohol
  • Acetylide
  • Chloroalkene
  • Haloalkene
  • Vinyl halide
  • Vinyl chloride
  • Hydrocarbon derivative
  • Organochloride
  • Organohalogen compound
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateLiquid
AppearanceNot Available
Experimental Properties
PropertyValue
Melting Point< 25°C
Boiling Point28.5-30°C
Solubility1.43e-01 g/L
LogP1.8
Predicted Properties
PropertyValueSource
Water Solubility0.14 g/LALOGPS
logP1.45ALOGPS
logP1.62ChemAxon
logS-3ALOGPS
pKa (Strongest Acidic)12.88ChemAxon
pKa (Strongest Basic)-3.7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity38.64 m³·mol⁻¹ChemAxon
Polarizability14.77 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-9100000000-2996a215de7a6e7538152017-08-28View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-009i-9600000000-5560a4de50772eb686d42017-10-06View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-3900000000-198eb76a2aa919525f422017-07-25View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0002-3900000000-e1616a7a6e75f2940d8c2017-07-25View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0159-9000000000-b25f488adecb3fd0ff422017-07-25View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-4900000000-2980fab2cceb6fc961072017-07-26View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-3900000000-a6b1e1a57494f22868dd2017-07-26View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a59-9400000000-b1fe9dd4623953d5d8ba2017-07-26View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-6900000000-725ac670d608f579f9b12021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-016u-9200000000-376cadd129a6109c15002021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-002b-9100000000-33378000f2ae89d4dfd82021-09-22View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-3900000000-ab92305130e98160aea22021-09-23View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-9000000000-c2fa753da65a4bac80a12021-09-23View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-9000000000-c2fa753da65a4bac80a12021-09-23View Spectrum
Toxicity Profile
Route of ExposureOral, rapidly absorbed from gastrointestinal tract.
Mechanism of ToxicityAlthough the exact mechanism of action is unknown, ethchlorvynol appears to depress the central nervous system in a manner similar to that of barbiturates. Barbiturates bind at a distinct binding sites associated with a Cl- ionopore at the GABAA receptor, increasing the duration of time for which the Cl- ionopore is open. The post-synaptic inhibitory effect of GABA in the thalamus is, therefore, prolonged.
MetabolismAbout 90% of a dose is metabolized in the liver. Some ethchlorvynol may also be metabolized in the kidneys. Ethchlorvynol and metabolites undergo extensive enterohepatic recirculation. Half Life: Plasma half-life is approximately 10 to 20 hours, terminal half-life is 21-100 hours.
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesUsed for short-term hypnotic therapy in the management of insomnia for periods of up to one week in duration; however, this medication generally has been replaced by other sedative-hypnotic agents.
Minimum Risk LevelNot Available
Health EffectsThey cause slurred speech, disorientation and "drunken" behavior. They are physically and psychologically addictive.
SymptomsSymptoms of overdose include thrombocytopenia.
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB00189
HMDB IDHMDB14335
PubChem Compound ID5281077
ChEMBL IDCHEMBL591
ChemSpider ID4444534
KEGG IDC07833
UniProt IDNot Available
OMIM ID
ChEBI ID4882
BioCyc IDNot Available
CTD IDNot Available
Stitch IDEthchlorvynol
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkEthchlorvynol
References
Synthesis Reference

Bayley, A. and McLamore, W.M.; U.S. Patent 2,746,900; May 22,1956; assigned to Chas.
Pfizer & Co., Inc.

MSDST3D2708.pdf
General References
  1. Drugs.com [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Gene Name:
GABRA1
Uniprot ID:
P14867
Molecular Weight:
51801.395 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:
Inhibitory extracellular ligand-gated ion channel activity
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:
51325.85 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:
Inhibitory extracellular ligand-gated ion channel activity
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:
55164.055 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:
Inhibitory extracellular ligand-gated ion channel activity
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:
GABRA4
Uniprot ID:
P48169
Molecular Weight:
61622.645 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:
Transporter activity
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:
GABRA5
Uniprot ID:
P31644
Molecular Weight:
52145.645 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:
Inhibitory extracellular ligand-gated ion channel activity
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:
GABRA6
Uniprot ID:
Q16445
Molecular Weight:
51023.69 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:
Ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Gene Name:
GABRB1
Uniprot ID:
P18505
Molecular Weight:
54234.085 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:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRB2
Uniprot ID:
P47870
Molecular Weight:
59149.895 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:
Gaba-gated chloride ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRB3
Uniprot ID:
P28472
Molecular Weight:
54115.04 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 ]
10. GABA-A receptor (anion channel) (Protein Group)
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Included Proteins:
P14867 , P47869 , P34903 , P48169 , P31644 , Q16445 , P18505 , P47870 , P28472 , O14764 , P78334 , Q8N1C3 , P18507 , Q99928 , O00591 , Q9UN88
References
  1. Smeyatsky N, Baldwin D, Botros W, Gura R, Kurian T, Lambert MT, Patel AG, Steinert J, Priest RG: The treatment of sleep disorders. S Afr Med J. 1992 May 2;Suppl:1-8. [1585214 ]