Rose ammonium tricarboxylate

English name: Aluminon; Aurintricarboxylic acid triammonium salt; CI 43810
Other names: aluminum reagent; ammonium tricarboxylate; 5-[(3-carboxy-4-hydroxyphenyl) (3-carboxy-4-oxo-2,5-cyclohexadiene-1-ylidene ) Methyl] -2-hydroxybenzoic acid triammonium salt; gold tricarboxylic acid ammonium
CAS number: 569-58-4
C22H23N3O9 = 473.44
Level: AR
Sensitivity test: qualified dissolution test: qualified burning residue: ≤0.2%
Properties: yellow-brown or brown-red powder. Easily soluble in water, slightly soluble in ethanol, almost insoluble in ether, acetone and chloroform. Melting point 220 ~ 225 ℃ (decomposition). The maximum absorption wavelength is 522 (450) nm. The lethal dose (mice, vein) is 4mG / kG. There are irritating uses: biochemical research. Determination of aluminum in water, food and tissues. Photometric determination of aluminum, beryllium and fluoride, gallium and scandium. Paper chromatography for aluminum storage: RT, protected from light

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