Murexide/Acid ammonium purpurate/Ammonium purpurate/5,5′-Nitrilodibarbituric acid ammonium salt

English Name: murexide; Acid ammonium purpurate； Ammonium purpurate； 5,5′-Nitrilodibarbituric acid ammonium salt

Other names: amino purple acid; Ammonium rhodiolate; Bone snail purple; Purpurine; 5, 5 '- diazo dibarboxylate ammonium salt; 5- ((hexahydro-2,4,6-trioxy-5-pyrimidinyl) imino) - 2,4,6 (1H, 3h, 5H) pyrimidine trione monoammonium salt

CAS No.: 3051-09-0

C8H8N6O6=284.19

Grade: ind

Complexation test: qualified

Burning residue: ≤ 0.1%

Physicochemical Properties: red purple crystalline powder, with green metallic luster. It can form complexes of various colors with many cations. Soluble in hot water, slightly soluble in cold water, almost insoluble in ethanol and ether. Its aqueous solution is dark purple, which varies with the pH value. It is dark blue in alkaline solution and colorless in acidic solution. The aqueous solution is easy to deteriorate. Melting point > 300 ℃. The maximum absorption wavelength (in water) is 520nm.

Purpose: biochemical research. Complexation indicator (used to titrate calcium, copper, cobalt, nickel, manganese, scandium, zinc, etc.). Photometric determination of calcium

Save: RT, away from light