Allantoin/Glyoxyldiureide/Glyoxylic(acid)diureide

English Name: allantoin; Glyoxyldiureide； Glyoxylic(acid)diureide

Other names: 1-urea-based m-azacyclopentane-2,4-dione; Urinary m-azacenyl-2,4-dione; 2,5-dioxo-4-imidazolidinyl urea; 1-urea-based m-azacyclopentadiene Dione - [2,4]; Urea cyst; (2,5-dioxo-4-imidazolidinyl) urea

CAS No.: 97-59-6

C33H36N4O6=584.67

Grade: br

Content: 98.5 ~ 100.5%

Sodium hydroxide dissolution test: acceptable

Burning residue: ≤ 0.05%

 Physicochemical properties : colorless crystalline powder. Odorless. Tasteless. 1g is soluble in 190ml water, 500ml ethanol, more soluble in hot water and hot ethanol, and almost insoluble in ether. The pH of saturated aqueous solution is 5.5. The melting point is 238 ~ 240 ℃.

Purpose: biochemical research. With amphoteric properties, it can form metal salts and adducts with many substances and maintain its original characteristics. Its saturated aqueous solution (0.6%) is slightly acidic (ph=6), which can remain stable in the aqueous solution with ph=4~9, and decomposes in the alkaline solution and when boiling for a long time. The pH of saturated aqueous solution is 5.5

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