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CAS

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57-43-2

Amobarbital, a member of the barbiturate class, is a white crystalline solid with no odor and a slightly bitter taste. It is pyrimidine-2,4,6(1H,3H,5H)-trione substituted by a 3-methylbutyl and an ethyl group at position 5. Amobarbital has been shown to exhibit sedative and hypnotic properties.

57-43-2 Suppliers

This product is a nationally controlled contraband or patented product, and the Lookchem platform doesn't provide relevant sales information.
  • 57-43-2 Structure

  • Basic information

    1. Product Name: Amobarbital
    2. Synonyms: 5-Ethyl-d5-5-(3-methylbutyl)-2,4,6-(1H,3H,5H)-pyrimidinetrione;Mylodor;AMOBARBITOL;Amobarbital (base and/or unspecified salts);5-Ethyl-5-isopentylpyrimidine-2,4,6(1H,3H,5H)-trionE;5-Ethyl-5-isobarbituric acid;Methanol（Test Amobarbital, 1.0 mg/mL）;Amobarbital CII (200 mg)
    3. CAS NO:57-43-2
    4. Molecular Formula: C11H18N2O3
    5. Molecular Weight: 226.27
    6. EINECS: 200-330-7
    7. Product Categories: Miscellaneous;Intermediates & Fine Chemicals;Isotope Labeled Compounds;Pharmaceuticals;Heterocycles
    8. Mol File: 57-43-2.mol

  • Chemical Properties

    1. Melting Point: 156-158°C
    2. Boiling Point: 367.89°C (rough estimate)
    3. Flash Point: 9℃
    4. Appearance: white crystalline powder
    5. Density: 1.1376 (rough estimate)
    6. Refractive Index: 1.4620 (estimate)
    7. Storage Temp.: ?20°C
    8. Solubility: N/A
    9. PKA: 8.0(at 25℃)
    10. Water Solubility: <0.1 g/100 mL at 18.5℃
    11. Stability: Stable. Incompatible with strong oxidizing agents. Hygroscopic.
    12. CAS DataBase Reference: Amobarbital(CAS DataBase Reference)
    13. NIST Chemistry Reference: Amobarbital(57-43-2)
    14. EPA Substance Registry System: Amobarbital(57-43-2)

  • Safety Data

    1. Hazard Codes: F,T
    2. Statements: 11-23/24/25-39/23/24/25
    3. Safety Statements: 16-36/37-45
    4. RIDADR: 3249
    5. WGK Germany: 1
    6. RTECS:
    7. HazardClass: 6.1(b)
    8. PackingGroup: III
    9. Hazardous Substances Data: 57-43-2(Hazardous Substances Data)

57-43-2 Usage

Uses

Used in Pharmaceutical Industry:
Amobarbital is used as a controlled substance (depressant) for its sedative and hypnotic effects. It is regulated as a schedule II compound in the United States and intended only for forensic and research purposes.
Used in Forensic and Research Applications:
Amobarbital is used for binding at complex I to inhibit mitochondrial electron transport. It is a qualified Reference Material (RM) that has been manufactured and tested to meet ISO17025 and Guide 34 guidelines. These materials are tested using validated analytical methods on qualified instrumentation to ensure traceability of measurements.
Used in Drug Delivery Systems:
Amobarbital is also used under various brand names such as Amytal Sodium (Lilly), Talamo (Marion Merrell Dow), Altinal, Alupent-sed, Ambese-la, Amobell, Amsal, Amycal, Amydorm, Amylbarb, Amylobeta, Analgilasa, Appenil, Asthma, Beatol, Bludex, Calavon, Cuaot, Dexaspan, Dexital, Ergo-lonarid, Estimal, Etamyl, Ifenin, Isoamitil sedante, Isobec, Jalonac, Lonarid n, Medi-trol, Mudeka, Mylodorm sustrel, N 8, Neur-amyl, Novambobarb, Novogen, Obeslim, Placidel, Protasma, Sedo-rythmodan, and Sy-dexam.

Originator

Hypnotal,Pharmacal

Manufacturing Process

By interaction of malonic acid diethyl ester with sodium ethylate (molar ratio 1:1) and then with ethyl bromide (molar ratio 1:1) was prepared ethylmalonic acid diethyl ester. From ethylmalonic acid diethyl ester and sodium ethylate (molar ratio 1:1) and then with isopentylbromide was synthesized α-ethyl-α- isopentylmalonic acid diethyl ester. By condensation of α-ethyl-α- isopentylmalonic acid diethyl ester with urea in the presence of sodium ethylate was obtained ethyl-isopentylbarbituric acid.

Therapeutic Function

Hypnotic, Antiepileptic

World Health Organization (WHO)

Amobarbital is an intermediate-acting barbiturate which is controlled under Schedule III of the 1971 Convention on Psychotropic Substances. See WHO comment for barbiturates. (Reference: (UNCPS3) United Nations Convention on Psychotropic Substances (III), , , 1971)

Air & Water Reactions

Amobarbital is hygroscopic . Insoluble in water.

Reactivity Profile

Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.

Hazard

May be a habit forming drug of abuse.

Fire Hazard

Flash point data for Amobarbital are not available, however, Amobarbital is probably combustible.

Safety Profile

A poison by ingestion,intravenous, intraperitoneal, and subcutaneous routes. Seealso BARBITURATES. When heated to decomposition itemits toxic fumes of NOx.

Check Digit Verification of cas no

The CAS Registry Mumber 57-43-2 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 57-43:
(4*5)+(3*7)+(2*4)+(1*3)=52
52 % 10 = 2
So 57-43-2 is a valid CAS Registry Number.
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)

57-43-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name amobarbital

1.2 Other means of identification

Product number -
Other names Amytal

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:57-43-2 SDS

57-43-2Relevant articles and documents

Preparation and purification method of 5-ethyl-5-isoamyl malonyl urea

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Paragraph 0016-0027, (2020/09/12)

The invention provides a preparation and purification method for preparing 5-ethyl-5-isoamyl malonyl urea. The preparation and purification method has the advantages of stable process, no special requirements on the concentration of sodium methoxide, direct use of industrial products in the reaction process, easy control of reaction conditions, short reaction time, simple operation, less three wastes, good product quality, high yield, effective reduction of the impurity content, improvement of the quality of the target product, low production cost, and suitableness for industrial production.

Competition between two metabolic pathways: oxidation and desulfuration in the thiobarbiturate series

Yebga, A.,Menager, S.,Verite, P.,Farnoux, C. Combet,Lafont, O.

, p. 769 - 778 (2007/10/03)

In order to study the competition between hepatic hydroxylation and desulfuration in the thiobarbiturate series, two compounds bearing a branched side chain with a tertiary carbon atom in position ω-1 were administered to rats over about one week.Urine and faeces were collected and extracted.The metabolites isolated were identified.It was shown that desulfuration was not the major metabolic pathway, and that, when it took place, it remained a minor process and was accompanied by γ-hydroxylation into a tertiary alcohol. thiobarbiturate series / metabolism / oxidation / desulfuration