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| Product | Description | |
|---|---|---|
| Murexide | Murexide (Ammonium purpurate) can be used as an indicator in complexometric titrations to determine water hardness. Uses: Scientific research. Group: Biochemical assay reagents. Alternative Names: Ammonium purpurate. CAS No. 3051-09-0. Pack Sizes: 1 g; 5 g. Product ID: HY-125929. |  |
| Murexide | Murexide. Group: Biochemicals. Alternative Names: Ammonium purpurate. Grades: Highly Purified. CAS No. 3051-09-0. Pack Sizes: 100g, 250g, 500g, 1kg, 2kg. Molecular Formula: C8H4N5O6·NH4. US Biological Life Sciences. |  Worldwide |
| Murexide | REAGENT (NH4C8H4N5O6, or C8H5N5O6·NH3), also called ammonium purpurate or MX, is the ammonium salt of purpuric acid. It may be prepared by heating alloxantin in ammonia gas to 100°C, or by boiling uramil (5-aminobarbituric acid) with mercury oxide. W.N. Hartley found considerable difficulty in obtaining specimens of REAGENT sufficiently pure to give concordant results when examined by means of their absorption spectra, and consequently devised a new method of preparation for REAGENT. In this process alloxantin is dissolved in a large excess of boiling absolute alcohol, and dry ammonia gas is passed into the solution for about three hours. The solution is then filtered from the precipitated REAGENT, which is washed with absolute alcohol and dried. The salt obtained in this way is in the anhydrous state. It may also be prepared by digesting alloxan with alcoholic ammonia at about 78°C; the purple solid so formed is easily soluble in water, and the solution produced is indistinguishable from one of REAGENT.REAGENT in its dry state has the appearance of a reddish purple powder, slightly soluble in water. In solution, its color ranges from yellow in strong acidic pH through reddish-purple in weakly acidic solutions to blue-purple in alkaline solutions. The pH for titration of calcium is 11.3.Justus von Liebig and Friedrich Wöhler in Giessen, Germany, had investigated the purple product, REAGENT, obtained from snake excrement in the 1 |  |
| Murexide 98+% ACS | Murexide 98+% ACS. Group: Biochemicals. Grades: ACS Grade. Pack Sizes: 25g, 100g, 250g, 1Kg. US Biological Life Sciences. | Worldwide |
| Murexide (C.I. 56085) | 25g Pack Size. Group: Stains & Indicators. Formula: C8H8N6O6. CAS No. 3051-09-0. Prepack ID 18084818-25g. Molecular Weight 284.19. See USA prepack pricing. |  |
| 5-[(Hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-2,4,6(1H,3H,5H)-pyrimidinetrione Ammonium Salt | 5-[(Hexahydro-2,4,6-trioxo-5-pyrimidinyl)imino]-2,4,6(1H,3H,5H)-pyrimidinetrione Ammonium Salt. Group: Biochemicals. Alternative Names: 5-[(Hexahydro-2, 4, 6-trioxo-5-pyrimidinyl)imino]-2, 4, 6(1H, 3H, 5H)pyrimidinetrione Monoammonium Salt; 5,5'-Nitrilodibarbituric Acid Monoammonium Salt; Murexide ; Ammonium 5- (2, 4, 6-trioxoper hydropyrimidin-5-ylide ne amino) barbiturate; Ammonium Purpurate; Purpuric Acid Ammonium Salt. Grades: Highly Purified. CAS No. 3051-09-0. Pack Sizes: 5g. Molecular Formula: C8H8N6O6, Molecular Weight: 284.19. US Biological Life Sciences. | Worldwide |
| Methyl red | Methyl red (2-(N,N-dimethyl-4-aminophenyl) azobenzenecarboxylic acid), also called C.I. Acid Red 2, is an indicator dye that turns red in acidic solutions. It is an azo dye, and is a dark red crystalline powder. Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKa of 5.1. Murexide and methyl red are investigated as promising enhancers of sonochemical destruction of chlorinated hydrocarbon pollutants. Methyl red is classed by the IARC in group 3 - unclassified as to carcinogenic potential in humans. Group: Heterocyclic organic compound. Alternative Names: 2-[4- (dimethylamino)phenylazo]benzoic acid;4-dimethylaminoazobenzene-2-carboxylic acid;Methyl Red,indicator;2-(4-Dimethylaminophenylazo)benzoic acid;4-Dimethylaminoazobenzene-2-carboxylic acid. CAS No. 493-52-7. Molecular formula: C15H15N3O2. Mole weight: 269.3. Appearance: Red crystalline powder. Purity: Purity >97%. IUPACName: 2-[4- (dimethylamino) phenyl]diazenylbenzoic acid. Canonical SMILES: CN (C)C1=CC=C (C=C1)N=NC2=CC=CC=C2C (=O)O. Density: 0.839 g/mL at 25ºC. ECNumber: 207-776-1. Catalog: ACM493527. | |
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