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BARBITAL Basic information
  • Product Name:BARBITAL
  • CAS:57-44-3
  • MF:C8H12N2O3
  • MW:184.19
  • EINECS:200-331-2
  • Mol File:57-44-3.mol
BARBITAL Chemical Properties
  • Melting point:188-192°C
  • Boiling point:318.14°C (rough estimate)
  • Density 1.2200
  • refractive index 1.4200 (estimate)
  • Flash point:11 °C
  • storage temp. 2-8°C
  • pka7.43(at 25℃)
  • color Faintly bitter crystals from H2O; polymorphicforms; triagonal crystals, monoclinic prisms, monoclinicneedles, and triclinic cryst
  • Water Solubility 7.149g/L(25 ºC)
  • Merck 13,965
  • EPA Substance Registry System5,5-Diethylbarbituric acid (57-44-3)
Safety Information
BARBITAL Usage And Synthesis
  • Chemical PropertiesWhite crystals or powder; bitter taste; odorless. Stable in air. Soluble in hot water, alcohol, ether, acetone, and ethyl acetate.
  • UsesPrototype of the barbiturate hypnotics.
  • DefinitionChEBI: A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by two ethyl groups. Formerly used as a hypnotic (sleeping aid).
  • brand nameDormileno;Escoderm;Hypnogene;Hypnox;Lidor;Megal;Plexonal;Somnytic tablets;Verinogen;Verodon;Veroletten;Verolitten;Veronigen.
  • World Health Organization (WHO)Barbital is a long-acting barbiturate which is controlled under Schedule IV of the 1971 Convention on Psychotropic Substances. See WHO comment for barbiturates. (Reference: (UNCPS4) United Nations Convention on Psychotropic Substances (IV), , , 1971)
  • Safety ProfilePoison by ingestion, intravenous,intraperitoneal, and subcutaneous routes. Ingestion causespsychological effects in humans. Mutation data reported.When heated to decomposition it emits toxic fumes ofNOx. An hypnotic andsedative.
  • Purification MethodsCrystallise barbital from water or EtOH and dry it in a vacuum over P2O5. [Beilstein 24 III/IV 1901.]
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