Butabarbital Sodium
Title: Butabarbital Sodium
CAS Registry Number: 143-81-7
CAS Name: 5-Ethyl-5-(1-methylpropyl)-2,4,6(1H,3H,5H)-pyrimidinetrione sodium salt
Additional Names: 5-sec-butyl-5-ethylbarbituric acid sodium salt; 5-ethyl-5-(1-methylpropyl)barbituric acid sodium salt; sodium 5-sec-butyl-5-ethylbarbiturate; sodium 5-ethyl-5-(1-methylpropyl)barbiturate; secbutobarbitone sodium
Trademarks: Asturidon (Cilag); Bubarbital Sodium (Philips Roxane); Butabarbitone Sodium; Busodium (Truxton); Busotran (Galen); Butabon; Butabar (Flar); Butak (Lemmon); Buta-Kay (King); Butrate (Kay); Butte (Scrip); Buticaps (McNeil); Butalan (Lannett); Butanotic (Medical Arts); Butex (Phillips); Butatran (Palmedico); Butazem (Zemmer); Carrbutabarb (Century); Butased (Schlicksup); Butisol Sodium (McNeil); Loubarb; Neravan (Promonta); Prelital; Sarisol (Halsey)
Molecular Formula: C10H15N2NaO3
Molecular Weight: 234.23
Percent Composition: C 51.28%, H 6.45%, N 11.96%, Na 9.82%, O 20.49%
Literature References: Prepn: Shonle, US 1856792 (1932 to Lilly).
Properties: Bitter powder. (The free acid mp 165-168°.) One gram dissolves in 2 ml water, in about 7 ml alcohol. Practically insol in ether, benzene. The pH of 10% aq soln 10.0-11.2 (USP XXI, 1985).
Melting point: The free acid mp 165-168°
NOTE: This is a controlled substance (depressant): 21 CFR, 1308.13.
Therap-Cat: Sedative, hypnotic.
Keywords: Sedative/Hypnotic; Barbituric Acid Derivatives.

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