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Analytical tests were conducted to investigate the use of N-bromosuccinimide (NBS) as an important, safe analytical reagent for the spectrophotometric detection of therapeutically significant dihydropyridine-based calcium antagonists (DHP), namely nifedipine (NIF) and amlodipine (AML), which have been ...
水溶解试验Solubility in water 合格 合格 乙醇溶解试验Solubility in ethanol 合格 合格 灼烧残渣(以硫酸盐计)Ignition residue,% ≤0.1 0.1 氯化物(Cl)Chloride,% ≤0.1 0.05 贮存:密封避光保存。 用途 有机合成原料,用于调节低能溴化反应,也用于生产橡胶助剂和医药品。可合成溴乙腈医药。农药工业用于合成噻菌灵...
水溶解试验Solubility in water 合格 合格 乙醇溶解试验Solubility in ethanol 合格 合格 灼烧残渣(以硫酸盐计)Ignition residue,% ≤0.1 0.1 氯化物(Cl)Chloride,% ≤0.1 0.05 贮存:密封避光保存。 用途 有机合成原料,用于调节低能溴化反应,也用于生产橡胶助剂和医药品。可合成溴乙腈医药。农药工业用于合成噻菌灵...
solubility14.8g/l (decomposition) pka-2.78±0.20(Predicted) formCrystalline Powder colorWhite to light yellow Odorcharacteristic odour of bromine Water SolubilitySoluble in acetone, tetrahydrofuran, dimethyl formamide, dimethyl sulfoxide and acetonitrile. Slightly soluble in water and acetic acid. Insoluble ...
After most of the aqueous portion has been decanted, the white crystals are collected by filtration through a bed of ice and washed well with water. The crystals are dried on the filter and then in vacuo. The purity of NBS may be determined by the standard iodide–thiosulfate titration ...
Introduction MSDS and Safety Information Technical Information CoA Transaction records Melting Point:175-180℃ Specific Gravity:2.098 Solubility:Soluble in acetone, slightly soluble in water, chloroform, carbon tetrachloride, hexane and ice acetic acid. ...
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Bromination by equimolar amount of hydrochlorides with N-bromosuccinimide at room temperature in water gives 5-bromo-6-methyl-2, 3-tri(tetra)methylene-3, 4-dihydropyrimidine-4-ones. Treatment of them by bromine resulted in the formation of perbromides. The reactions were monitored and controlled...
All chemicals, solvents, and reagents utilized in this study were of high purity, either analytical reagents or pharmaceutical grade. Additionally, all solutions were freshly produced on a regular basis.Purewater that has undergone double distillation was utilized throughout the experiment. ...