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10.1002/jps.2600531226.abs Polymyxin B sulfate produces diastolic standstill followed by contracture in the isolated perfused rabbit heart. No increase in cardiac output was noted in the perfused frog heart. Large doses inhibit splanchnic nerve innervation to the perfused superior mesenteric...
10.1002/jps.2600531219.abs The characteristics of the absorption of prednisolone were studied both in intact dogs and in ligated segments of the intestinal tract. Absorption of uncoated prednisolone was essentially complete in 2 hours. Following the administration of copolymer‐coated pellets,...
10.1002/jps.2600531236.abs The synthesis of a group of Mannich bases and secondary and tertiary γ‐aminoalcohols derived from hexamethylenimine are described. These compounds are to be screened for possible pharmacological action.
10.1002/jps.2600531227.abs A reliable procedure was needed for the sterility testing of oils since the present U.S.P. method, primarily designed for aqueous solutions, did not always yield unequivocal results. A membrane filtration method together with the necessary equipment was developed. The...
10.1002/jps.2600531213.abs Countercurrent distribution (CCD) procedures are described for the isolation of coumestrol and 12 other phenolic compounds from alfalfa. Three of these were identified as trifoliol, tricin, and salicylic acid. Elemental analysis indicated empirical formulas for four of...
10.1002/jps.2600531235.abs A rapid and convenient infrared method was developed for the assay of triethanolamine salicylate in an ointment base. The method involves drying the ointment, scanning the infrared spectrum from 5.5 to 8.7 μ, and calculating the ratio of the absorption peaks at 6.3 and...
10.1002/jps.2600531216.abs Mamey wax, m.p. 79.5°, isolated from the seed oil of Mammea americana L. is shown to be a mixture of saturated, long straight‐chain fatty esters with carbon contents ranging from C38 to C54. The major constituent is the symmetrical C48 homolog, tetracosanyl...
10.1002/jps.2600531233.abs A large number of opium alkaloids has been chromatographed by gas, thin‐layer, and paper chromatography for the purpose of identification. Gas chromatography is particularly valuable because of its speed, simplicity, and reproducibility. The two other methods are...
10.1002/jps.2600531224.abs A colorless saponin isolated from Maharashtrian Albizzia procera seeds on hydrolysis yields a new pentacyclic triterpenic acid, m.p. 268–270°, acetate, m.p. 288–290°, methyl ester, m.p. 224–225°, and acetyl methyl ester, m.p. 280–281°. The compound has been...
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