紫脲酸铵结构式
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常用名 | 紫脲酸铵 | 英文名 | Murexide |
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| CAS号 | 3051-09-0 | 分子量 | 284.186 | |
| 密度 | N/A | 沸点 | 480.8ºC at 760mmHg | |
| 分子式 | C8H8N6O6 | 熔点 | 300 °C | |
| MSDS | 中文版 美版 | 闪点 | N/A |
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Nickel (II) complexes of histidyl-peptides as Fenton-reaction catalysts.
Free Radic. Res. Commun. 11(1-3) , 159-66, (1990) Addition of histidyl-peptides containing the glycyl-glycyl-L-histidyl sequence stimulated the catalysis of Ni(II) hydrogen peroxide reduction. Maximum bleaching of murexide or nitrosodimethylaniline was obtained with glycyl-glycyl-L-histidine. A decrease in t... |
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Intravesicular calcium transient during calcium release from sarcoplasmic reticulum.
Biochemistry 30(21) , 5230-7, (1991) The time course of changes in the intravesicular Ca2+ concentration ([Ca2+]i) in terminal cisternal sarcoplasmic reticulum vesicles upon the induction of Ca2+ release was investigated by using tetramethylmurexide (TMX) as an intravesicular Ca2+ probe. Upon th... |
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Calcium binding to metallochromic dyes and calmodulin in the presence of combined, AC-DC magnetic fields.
Bioelectromagnetics 13(2) , 147-62, (1992) The possibility that weak, ac and dc magnetic fields in combination may affect binding equilibria of calcium-ions (Ca2+) was investigated with two metallochromic dyes as calcium-binding molecules: murexide and arsenazo III. Calcium-dye equilibria were followe... |
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Insulin-metal ion interactions: the binding of divalent cations to insulin hexamers and tetramers and the assembly of insulin hexamers.
Biochemistry 27(16) , 6179-87, (1988) An insulin hexamer containing one B10-bound Co(III) ion and one unoccupied B10 site has been synthesized. The properties of the monosubstituted hexamer show that occupancy of only one B10 site by Co3+ is sufficient to stabilize the hexameric form under the co... |
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Effect of thyroid hormones and their analogues on the mitochondrial calcium transport activity.
Physiol. Chem. Phys. Med. NMR 24(4) , 271-80, (1992) In this paper the authors studied the effects of thyroid hormones and their structural analogues on the mitochondrial calcium transport activities. The thyroid hormones, 3,5,3' L-triiodothyronine (LT3) and 3,5,3'5' L-tetraiodothyronine (LT4) at physiological ... |
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Evaluation of proton activity in microemulsions by a kinetic probe.
J. Colloid. Interface Sci. 352(2) , 465-9, (2010) The decomposition reaction of the purple dye murexide in acidic media is used as a probe indicator for protons in nonionic microemulsions. The reaction kinetics primarily rely on the proton concentration and permit assessment of the proton activity in the non... |
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Murexide bleaching: a new direct assay method for characterizing reactive oxygen species.
Biochimie 71(11-12) , 1231-4, (1989) The murexide (5,5'-nitrilodibarbituric acid, monoammonium salt) is an efficient scavenger for superoxide and hydroxyl radicals. When exposed to oxygen radicals, murexide is converted to a colorless alloxan derivative and its absorbance at 520 nm decreases in ... |
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The concentration of free Ca2+in the sarcoplasmic reticulum of frog cut twitch skeletal muscle fibers estimated with tetramethylmurexide
Cell Calcium 50(6) , 530-47, (2011) Highlights ► The resting concentration of free Ca 2+ in the SR of muscle was measured with TMX. ► The time course of [Ca 2+] in the SR of skeletal muscle is reliably recorded with TMX. ► The ability to measure [Ca 2+]SR should help future studies on Ca signal... |
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A simple flow-injection spectrofluorimetric method for the determination of mercury.
J. Fluoresc. 17(4) , 401-5, (2007) A highly sensitive flow-injection spectrofluorimetric method is presented for the rapid and simple determination of Hg (II) in environmental and pharmaceutical samples. Murexide (ammonium purpurate) was used as the fluorescence reagent in the carrier stream. ... |
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Putting an old dye to a new use.
J. Physiol. 581(Pt 1) , 4, (2007)
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