Grundinformationen
- Standard-SMILES
C#CC1(OC(N)=O)CCCCC1- InChIKey
GXRZIMHKGDIBEW-UHFFFAOYSA-N- Summenformel
- C9H13NO2
- Durchschnittliche Molmasse
- 167,2 g/mol
- Monoisotopische Masse
- 167,09462866
Überblick
Ethinamate is a carbamate ester that is the 1-vinylcyclohexyl ester of carbamic acid. A short-acting sedative-hypnotic, it was formerly used to treat insomnia. It has a role as a sedative. It is a carbamate ester and a terminal acetylenic compound.
Namen und Bezeichner
- Bevorzugter Name
- Ethinamate
- IUPAC
- (1-ethynylcyclohexyl) carbamate
- Lokaler Name
- Ethinamat
- Englischer Name
- ETHINAMATE
- Summenformel
- C9H13NO2
- Molmasse
- 167.21
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
126-52-3- PubChem CID
- 3284
- DTXSID
DTXSID7023013- ChEMBL
CHEMBL1576- ChEBI
CHEBI:4884- UNII
- IAN371PP48
- EC Number
- 204-789-4
- Nikkaji
- J2.513E
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 1,3
- Polarare Oberfläche (TPSA)
- 52,3 Ų
- H-Brücken-Donoren
- 1
- H-Brücken-Akzeptoren
- 2
- Frei drehbare Bindungen
- 3
- Schwere Atome
- 12
- Formalladung
- 0
- Komplexität
- 220
Experimentelle und physikochemische Eigenschaften
Drugs
DEA NFLIS-Drug Category -> Depressants and Tranquilizers
DEA Schedule IV Controlled Substance -> Depressants
Pharmaceuticals -> Listed in ZINC15
Pharmaceuticals -> Synthetic Cannabinoids or Psychoactive Compounds
Color/Form
NEEDLES FROM CYCLOHEXANE
WHITE POWDER
Solubility
1 G SOL IN ABOUT 500 ML WATER
FREELY SOL IN ALC, CHLOROFORM, & ETHER
SLIGHTLY SOL IN HEXANE
Sol at 25 °C in water 0.25%, ethanol 35.0%, hexane 2.0%, sesame oil 0.7%, 1,2-propylene glycol 22%.
1 in 3 part of alcohol, 1 in 50 part of light petroleum, 1 in 4.6 part of propylene glycol, and 1 in 140 part of sesame oil.
Human Drugs
FDA approved drugs -> Active ingredient
FDA approved drugs -> Active ingredient
Melting Point
94-96
96-98 °C
96 °C
Refractive Index
INDEX OF REFRACTION: 1.530 ALPHA, 1.536 BETA, 1.546 GAMMA; OPTIC SIGN +
INDEX OF REFRACTION (20% IN PROPYLENE GLYCOL): 1.4441 @ 21.5 °C/D
Physikochemische Eigenschaften
- Schmelzpunkt
- 96 · 96-98°
- Siedepunkt
- 3 · bp3 118-122°
- Dichte
- 1.1222 · 1.1222 (rough estimate)
- Brechungsindex
- 21.5 · nD21.5 1.4441 (20% in propylene glycol)
- Löslichkeit
- Chloroform (Slightly), Methanol (Slightly)
- pka
- 13.4 · 13.40±0.50(Predicted)
- EPA chemische Informationen
- 1 · Cyclohexanol, 1-ethynyl-, carbamate (126-52-3)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Warning
H302 (97.5%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 40 reports by companies from 2 notifications to the ECHA C&L Inventory.
Gefahrenhinweise
Regulatory Information
DEA schedule IV controlled substance
Cyclohexanol, 1-ethynyl-, carbamate: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
FDA Requirements
Manufacturers, packers, and distributors of drug and drug products for human use are responsible for complying with the labeling, certification, and usage requirements as prescribed by the Federal Food, Drug, and Cosmetic Act, as amended (secs 201-902, 52 Stat. 1040 et seq., as amended; 21 U.S.C. 321-392).
Schedules of controlled substances are established by section 202 of the Controlled Substances Act (21 U.S.C. 812). Schedule IV includes ethinamate, DEA Code #2545; Drug class: Depressant.
Drugs; statement of required warning. The label of any drug listed as a "controlled substance" in schedule II, III, or IV of the Federal Controlled Substances Act shall, when dispensed to or for a patient, contain the following warning: "Caution: Federal law prohibits the transfer of this drug to any person other than the patient for whom it was prescribed." This statement is not required to appear on the label of a controlled substance for use in clinical investigations which are "blind".
... Currently marketed prescriptive drug ... oral ethinamate.
Controlled substance in the USA - Schedule IV.
Sicherheit und Schutzausrüstung
Toxikologische Informationen
Interactions
2,4-DICHLORO-(6-PHENYLPHENOXY)ETHYLAMINE IS PARTICULARLY EFFECTIVE /MICROSOMAL DRUG METABOLISM/ INHIBITOR, PROLONGING HEXOBARBITAL & ETHINAMATE SLEEPING TIMES IN MICE & DOGS.
If ethinamate is ingested concurrently with alcohol or other central nervous system depressants, the potential hazards of both these agents are increased.
Toxicity Summary
The mechanism of action is not known. However, studies have shown that ethinamate inhibits carbonic anhydrases I and II (J Biol Chem. 1992 Dec 15;267(35):25044-50). This inhibition by ethinamate is not sufficiently strong, however, to implicate carbonic anhydrases I and II in the mechanism of action.
Human Toxicity Excerpts
SIDE EFFECTS ... INCL NAUSEA, OCCASIONAL VOMITING, & INFREQUENTLY RASH. IDIOSYNCRATIC EXCITEMENT MAY BE NOTED. FEVER & THROMBOCYTOPENIA OCCUR RARELY.
IN ONE PATIENT 16 G PRODUCED COMA, BUT RECOVERY WAS APPARENTLY COMPLETE 6 HR AFTER INGESTION. IN @ LEAST TWO OTHER ADULTS, HOWEVER, 15 G PRODUCED PROFOUND COMA, & ONE VICTIM EXPIRED FROM SUPERVENING PULMONARY EDEMA.
LONG TERM USE OF LARGER THAN RECOMMENDED DOSES MAY LEAD TO PSYCHIC & PHYSICAL DEPENDENCE.
LETHAL DOSE IS UNKNOWN; DEATH HAS RESULTED FROM INGESTION OF 15 G.
For more Human Toxicity Excerpts (Complete) data for ETHINAMATE (8 total), please visit the HSDB record page.
Regulatorische Informationen
FDA Requirements
Manufacturers, packers, and distributors of drug and drug products for human use are responsible for complying with the labeling, certification, and usage requirements as prescribed by the Federal Food, Drug, and Cosmetic Act, as amended (secs 201-902, 52 Stat. 1040 et seq., as amended; 21 U.S.C. 321-392).
Schedules of controlled substances are established by section 202 of the Controlled Substances Act (21 U.S.C. 812). Schedule IV includes ethinamate, DEA Code #2545; Drug class: Depressant.
Drugs; statement of required warning. The label of any drug listed as a "controlled substance" in schedule II, III, or IV of the Federal Controlled Substances Act shall, when dispensed to or for a patient, contain the following warning: "Caution: Federal law prohibits the transfer of this drug to any person other than the patient for whom it was prescribed." This statement is not required to appear on the label of a controlled substance for use in clinical investigations which are "blind".
... Currently marketed prescriptive drug ... oral ethinamate.
Controlled substance in the USA - Schedule IV.
Sicherheitsdaten
- tsca
- TSCA listed
- RTECS-Nr.
- GV9275000
- risk_code
- 23/24/25-22
- hazard_code
- T,Xn
- safety_code
- 22-36/37/39-45
- Giftige Stoffe Daten
- 126-52-3(Hazardous Substances Data)
Chemie und Industrie
Pharmakologische Informationen
Pharmacodynamics
Ethinamate is used to treat insomnia (trouble in sleeping). However, it has generally been replaced by other medicines for the treatment of insomnia. If ethinamate is used regularly (for example, every day) to help produce sleep, it is usually not effective for more than 7 days. Structurally, it does not resemble the barbiturates, but it shares many effects with this class of drugs; the depressant effects of ethinamate are, however, generally milder than those of most barbiturates. Continued and inappropriate use of ethinamate can lead to tolerance and physical dependence, with withdrawal symptoms very similar to those of the barbiturates.
Mechanism of Action
The mechanism of action is not known. However, studies have shown that ethinamate inhibits carbonic anhydrases I and II (J Biol Chem. 1992 Dec 15;267(35):25044-50). This inhibition by ethinamate is not sufficiently strong, however, to implicate carbonic anhydrases I and II in the mechanism of action.
... ETHINAMATE ... /IS/ NON-SELECTIVE CNS /DEPRESSANT/ ... .
Biological Half-Life
2.5 hours
Half-life 2.5 hours. Duration of action about 3 to 5 hours.
135 MINUTES
Metabolism/Metabolites
Hepatic.
ETHINAMATE IS INACTIVATED @ LEAST PARTLY BY LIVER, BY HYDROXYLATION OF CYCLOHEXYL RING; PRODUCT IS CONJUGATED & EXCRETED AS GLUCURONIDE.
Ethinamate is rapidly absorbed from the gastrointestinal tract and is in part metabolized by the liver. The major of three metabolites is hydroxyethinamate (yielded by hydroxylation of the cyclohexyl ring), and it is yet unclear whether this metabolite has any pharmacologic effect. Hydroxyethinamate is combined with glucuronide to form approximately equal quantities with free hydroxyethinamate.
Hepatic. Half Life: 2.5 hours
Absorption, Distribution and Excretion
Rapidly absorbed following oral administration.
ETHINAMATE IS INACTIVATED @ LEAST PARTLY BY LIVER, BY HYDROXYLATION OF CYCLOHEXYL RING; PRODUCT IS CONJUGATED & EXCRETED AS GLUCURONIDE.
IT IS EXTENSIVELY METABOLIZED, BUT PRELIMINARY EXPERIENCE INDICATES APPRECIABLE QUANTITIES CAN BE REMOVED BY EXTRACORPOREAL HEMODIALYSIS. ... HIGH LIPID SOLUBILITY ... .
ABSORPTION & CLEARANCE OF ETHINAMATE WAS STUDIED AFTER SINGLE ORAL DOSAGES IN THERAPEUTIC RANGE TO NONFASTING SUBJECTS. MEAN MAX PLASMA LEVEL WAS OBSERVED AFTER 1 HR (T/2 IN BLOOD 2.3 HR).
Rapidly absorbed. ... Renal elimination. Approximately 36% of administered dose appears in urine within 24 hours.
Ethinamate is rapidly absorbed from the gastrointestinal tract and is in part metabolized by the liver. The major of three metabolites is hydroxyethinamate (yielded by hydroxylation of the cyclohexyl ring), and it is yet unclear whether this metabolite has any pharmacologic effect. Hydroxyethinamate is combined with glucuronide to form approximately equal quantities with free hydroxyethinamate. Maximum blood concentrations are reached within 60 minutes after ingestion. From the absorbed ethinamate, 10 per cent is metabolized to CO2 while the rest is excreted by the kidney, mainly as hydroxyethinamate glucuronides (89 per cent), and metabolites (9%); only 2% of free ethinamate is excreted in the urine.
Verwendung und Herstellung
Uses
MEDICATION
Used for the short-term treatment of insomnia, however, it generally has been replaced by other sedative-hypnotic agents.
Formulations/Preparations
... ETHINAMATE, NF (VALMID) ... IT IS MARKETED IN 500-MG TABLETS.
Valmid, oral capsules with ethinamate 500 mg, sodium bicarbonate, sodium carboxymethyl starch, sodium lawryl sulfate.
Valmid (R): Capsules, 500 mg.
General Manufacturing Information
Cyclohexanol, 1-ethynyl-, 1-carbamate: INACTIVE
TRADEMARK VALAMIN WAS USED FORMERLY TO INDICATE BRAND OF TERT-AMYL ISOVALERATE.
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
Ergänzende Hinweise
DefinitionChEBI: A carbamate ester that is the 1-vinylcyclohexyl ester of carbamic acid. A short-acting sedative-hypnotic, it was formerly used to treat insomnia.
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