barbital


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barbital

[′bär·bə‚tȯl]
(organic chemistry)
C8H12N2O3 A compound crystallizing in needlelike form from water; has a faintly bitter taste; melting point 188-192°C; used to make sodium barbital, a long-duration hypnotic and sedative.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The sunflower oil cake was supplemented with (in mg) soybean meal 250, calcium carbonate 75, potassium nitrate 100, barbital 20, and magnesium sulphate 1 with predetermined quantity of water.
Over 2500 derivatives of barbituric acid have been synthesized after the triumph of barbital and phenobarbital in epilepsy.
Alkaline phosphatase (marker for secretory vesicles/plasma membrane) was measured by hydrolysis of p-nitrophenyl phosphate, at pH 10.5, in a sodium barbital buffer.
The Beckman system used a 1% agarose gel, barbital running buffer with a pH of 8.6, a run time of 37 minutes at 100 volts, and Coomassie blue stain.
These RIAs use 150 [micro]g 8-anilino-1-naphthalene sulfonic acid in each assay tube, and barbital buffer to eliminate interference of serum binding proteins.
Intravenous diazepam achieved quicker sedation of patients, compared with rectal paraldehyde in one study, and there was no difference in sedation times between intramuscular diazepam and oral barbital in another, said Dr.
Briefly, tissue samples were homogenized in 10 X vol of chilled 25 mmol [1.sup.-1] veronal buffer (25 mmol [1.sup.-1] barbital buffer, 5 mmol [1.sup.-1] EDTA, 5 mmol [1.sup.-1] dithiothreitol, and 10 mmol [1.sup.-1] MgS[O.sub.4], pH 8) and centrifuged for 10 min at 1200 X g.
Serial dilutions of human CNP-22, BNP-32, and ANP-28 in barbital buffer measured with the CNP RIA revealed cross-reactivity for BNP-32 in physiological concentrations (Fig.
Potentiation of barbital hypnosis as an evaluation method for central nervous system depressant.
Supematants were pooled and evaporated to dryness under nitrogen, and desiccated samples were resuspended in 0.25 mL barbital buffer containing 2.5 mg/mL anilino naphthalene sulfonic acid (to disrupt the coupling between thyroid hormones and serum proteins, including lipoproteins), 0.25 mL ethanol, and 1 mL chloroform.
Stock buffer was composed of 10 mmol/L sodium barbital, 2 mmol/L potassium phosphate monobasic, and 383 mmol/L sodium chloride.