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Amobarbital
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  • Name Amobarbital
  • EINECS200-330-7
  • CAS No. 57-43-2
  • Density1.069 g/cm3
  • PSA75.27000
  • LogP1.84260
  • SolubilitySoluble in water:<0.1 g/100 mL at 18.5 ºC
  • Melting Point156-158 ºC
  • FormulaC11H18 N2 O3
  • Boiling Point°Cat760mmHg
  • Molecular Weight226.276
  • Flash Point°C
  • Transport InformationN/A
  • Appearancewhite crystalline powder
  • SafetyA poison by ingestion, intravenous, intraperitoneal, and subcutaneous routes. See also BARBITURATES. When heated to decomposition it emits toxic fumes of NOx.
  • Risk Codes11-23/24/25-39/23/24/25
  • Molecular Structure
    Molecular Structure of 57-43-2 (Amobarbital)
  • Hazard SymbolsF,T
  • SynonymsF,T
  • Article Data16

Amobarbital Chemical Properties

Molecular Formula: C11H18N2O3
Molar mass: 226.27 g/mol
EINECS: 200-330-7
Density: 1.069 g/cm3
Index of Refraction: 1.46
Melting point: 156-158°C
Water solubility: <0.1 g/100 mL at 18.5 ºC
Appearance: Crystalline Solid
Stable: Stable. Incompatible with strong oxidizing agents. Hygroscopic
Product categories of Amytal (57-43-2): Miscellaneous;Intermediates & Fine Chemicals;Pharmaceuticals;Isotope Labeled Compounds
Structure of Amytal (57-43-2):

XLogP3-AA: 2.1
H-Bond Donor: 2
H-Bond Acceptor: 3
Systematic Name: 5-Ethyl-5-isopentyl-hexahydropyrimidine-2,4,6-trione 
SMILES: O=C1NC(=O)NC(=O)C1(CCC(C)C)CC 
InChI: InChI=1/C11H18N2O3/c1-4-11(6-5-7(2)3)8(14)12-10(16)13-9(11)15/h7H,4-6H2,1-3H3,(H2,12,13,14,15,16) 
InChIKey: VIROVYVQCGLCII-UHFFFAOYAO 
Std. InChI: InChI=1S/C11H18N2O3/c1-4-11(6-5-7(2)3)8(14)12-10(16)13-9(11)15/h7H,4-6H2,1-3H3,(H2,12,13,14,15,16) 
Std. InChIKey: VIROVYVQCGLCII-UHFFFAOYSA-N

Amobarbital Uses

 Amytal (57-43-2) can be used for controlled substance (depressant) for sedative and hypnotic.

Amobarbital Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LDLo oral 100mg/kg (100mg/kg)   Physiological Reviews. Vol. 19, Pg. 472, 1939.
dog LD50 intravenous 58mg/kg (58mg/kg)   Drugs in Japan Vol. -, Pg. 63, 1990.
dog LDLo oral 250mg/kg (250mg/kg) BEHAVIORAL: SLEEP Journal of Pharmacology and Experimental Therapeutics. Vol. 26, Pg. 371, 1926.
mammal (species unspecified) LDLo oral 550mg/kg (550mg/kg)   Journal of Pharmacology and Experimental Therapeutics. Vol. 42, Pg. 253, 1931.
mouse LD50 intraperitoneal 175mg/kg (175mg/kg) BEHAVIORAL: GENERAL ANESTHETIC Journal of Medicinal Chemistry. Vol. 10, Pg. 1078, 1967.
mouse LD50 oral 345mg/kg (345mg/kg)   Journal of the American Chemical Society. Vol. 61, Pg. 96, 1939.
mouse LD50 subcutaneous 212mg/kg (212mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 15, Pg. 688, 1965.
rabbit LD50 intravenous 49mg/kg (49mg/kg)   Journal of Pharmacology and Experimental Therapeutics. Vol. 96, Pg. 209, 1949.
rabbit LD50 oral 575mg/kg (575mg/kg)   Drugs in Japan Vol. -, Pg. 63, 1990.
rabbit LDLo intraperitoneal 90mg/kg (90mg/kg)   Journal of Pharmacology and Experimental Therapeutics. Vol. 41, Pg. 465, 1931.
rabbit LDLo subcutaneous 170mg/kg (170mg/kg)   Journal of the American Chemical Society. Vol. 45, Pg. 243, 1923.
rat LD50 intraperitoneal 115mg/kg (115mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD  
rat LD50 oral 250mg/kg (250mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)
BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION		 Arzneimittel-Forschung. Drug Research. Vol. 21, Pg. 719, 1971.
 
rat LD50 subcutaneous 190mg/kg (190mg/kg)   Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 152, Pg. 341, 1930.

Amobarbital Safety Profile

A poison by ingestion, intravenous, intraperitoneal, and subcutaneous routes. See also BARBITURATES. When heated to decomposition it emits toxic fumes of NOx.

Amobarbital Specification

 Amytal (57-43-2) is a drug that is a barbiturate derivative, and also can be called Amylobarbitone ; Amobarbital ; 2,4,6(1H,3H,5H)-pyrimidinetrione, 5-ethyl-5-(3-methylbutyl)- ;and 5-Ethyl-5-(3-methylbutyl)-2,4,6(1H,3H,5H)-pyrimidinetrione .Amines may be incompatible with halogenated organics, isocyanates, peroxides, anhydrides, phenols (acidic), epoxides, and acid halides.Amines are chemical bases.They neutralize acids to form salts plus water.

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