barbituric acid

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bar·bi·tu·ric acid

 (bär′bĭ-to͝or′ĭk, -tyo͝or′-)
An acidic pyrimidine derivative, C4H4O3N2, used in the manufacture of barbiturates and some plastics.

[Partial translation of German Barbitursäure (coined by German chemist Adolf von Baeyer (1835-1917), purportedly after he discovered the compound on December 4, 1864, the feast of Saint Barbara, by combining malonic acid and urea) : Barbit- (irregularly derived from the name Barbara) + New Latin ūr(ea), urea; see urea + German Säure, acid.]

barbituric acid

(Elements & Compounds) a white crystalline solid used in the preparation of barbiturate drugs. Formula: C4H4N2O3. Systematic name: 2,4,6-trioxypyrimidine Also called: malonylurea
[C19: partial translation of German Barbitursäure, perhaps from the name Barbara + uric + Säure acid]

bar′bitu′ric ac′id

(ˈbɑr bɪˈtʊər ɪk, -ˈtyʊər-, ˌbɑr-)
a white, crystalline, slightly water-soluble powder, C4H4N2O3, used chiefly in the synthesis of barbiturates.
[1865–70; < French barbiturique < German Barbitur(säure) barbituric acid (of uncertain orig.) + -ique -ic]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.barbituric acid - a white crystalline acid derived from pyrimidinebarbituric acid - a white crystalline acid derived from pyrimidine; used in preparing barbiturate drugs
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
References in periodicals archive ?
In the second tube was poured 2 ml of honey solution (10g/50 ml), 5 ml of reagent to para-toluidine (10g of para-toluidine dissolved in 50 ml of isopropanol and then 10 ml of glacial acetic acid and complete up to the mark of 100 ml with isopropanol) and 1 ml barbituric acid solution (500 mg of barbituric acid dissolved in 100 ml distilled water).
Gup, Synthesis of New Azo Dyes and Copper (II) Complexes Derived from Barbituric Acid and 4-aminobenzoilhydrazone, Turk.
Copper Sulphate,Diethyl barbituric Acid Powder,Diethyl Ether,Dimethyl Amino Benzaldehyde,Disodium di ethyl barbiturate powder,DPX Mountant (Make: Merck) (sample to be submitted),Drabkins solution(Hb),EDTA Dipottassiume,EDTA Powder(Make: Merck/Himedia/ Finnar/Paxmy) ,Ehrlics reagent,Eosin Yellow (water soluble) (Make: Merck/Himedia/Finnar/Paxmy),Ether (Alcohol Soluble),Ferric chloride,Fochets Reagent
We then applied this solution to a test strip containing a barbituric acid derivative (H.
It was reported that free radical polymerization of BMI can be initiated by barbituric acid (BTA) (7) or 2,2'-azobisisobutyronitrile (AIBN) (8).
Thio Barbituric Acid Reactive Substances-(TBARS) assay is a simple reproducible and standardized procedure for assaying lipid peroxidation in plasma, serum, urine, tissue homogenates, and cell lysates.
One of the oldest groups of sedative drugs, the barbiturates, is a derivative of barbituric acid.
Transformation of barbituric acid into alloxan by hydroxyl radicals: Interaction with melatonin and with other hydroxyl radical scavengers.
The principle of the method depends on measurement of the pink color produced by interaction of the barbituric acid with MDA elaborated as a result of lipid peroxidation.
Way back in 1864, Adolph von Baeyer had combined malic acid, isolated from apples, with urea, from urine, to make barbituric acid.