Title: Narcobarbital
CAS Registry Number: 125-55-3
CAS Name: 5-(2-Bromo-2-propenyl)-1-methyl-5-(1-methylethyl)-2,4,6(1H,3H,5H)-pyrimidinetrione
Additional Names: 5-(2-bromoallyl)-5-isopropyl-1-methylbarbituric acid; N-methyl-b-bromoallylisopropylbarbituric acid; 5-isopropyl-5-(b-bromoallyl)-N-methylbarbituric acid; enibomal
Molecular Formula: C11H15BrN2O3
Molecular Weight: 303.15
Percent Composition: C 43.58%, H 4.99%, Br 26.36%, N 9.24%, O 15.83%
Literature References: Prepd by heating 5-isopropyl-1-methylbarbituric acid with 2,3-dibromo-1-propene in alkaline soln: Boedecker, Gruber, DE 613403 (1937 to Riedel de Haen). See also DE 627380; US 2080071.
Properties: Crystals from dilute ethanol, mp 115°. Bitter taste. Very sparingly sol in water. Sol in methanol, ethanol, pyridine, alkaline aq solns.
Melting point: mp 115°
Derivative Type: Sodium salt
CAS Registry Number: 3329-16-6
Trademarks: Eunarcon (Parke-Davis)
Molecular Formula: C11H14BrN2NaO3
Molecular Weight: 325.13
Percent Composition: C 40.64%, H 4.34%, Br 24.58%, N 8.62%, Na 7.07%, O 14.76%
Properties: Alkaline, water-soluble.
NOTE: This is a controlled substance (depressant): 21 CFR, 1308.13.
Therap-Cat: Sedative, hypnotic; anticonvulsant.
Keywords: Anticonvulsant; Sedative/Hypnotic; Barbituric Acid Derivatives.
Status: This monograph has been retired and is no longer subject to revision or update.

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