Product description:

English name: Xanthine; 26-Dioxopurine; 26- (1H, 3H) -Purinedione; 37-Dihydroxy-1H-purine-26-dione
Other names: 26- dihydroxy purine; xanthine; Huang urinary ring; 26- purin-dioxide; 26- (1H, 3H) - purin-dione; 37- dihydro -1H- purin -26- dione; purin - 2 (3H), 6 (1H) - dione
CAS: 69-89-6
C5H4N4O2 = 152.11

Level: High purity grade
Content: ≥98.0%

Loss on drying: ≤1.0%

Heavy Metal: ≤10ppm
Appearance: white to pale yellow powder or white scaly or flaky crystal at 16 ℃, 1g dissolved in water 14.5L, 1.4L dissolved in boiling water, soluble in ammonia and sodium hydroxide solution, slightly soluble in ethanol, insoluble. in an organic solvent, thermal decomposition without melting point, and partially sublimated. pH6 maximum absorption wavelength of 267nm, ε10250, the minimum absorption wavelength 240nm, absorbance ratio A250 / A260 = 0.57, A280 / A260 = 0.61, A290 / A260 = 0.07. pH10 when The maximum absorption wavelength 277.5nm and 240.5nm, molar absorption coefficients were 9300 and 8900, the minimum absorption wavelength of 257nm, absorbance ratio A250 / A260 = 1.29, A280 / A260 = 1.71, A290 / A260 = 0.92. median lethal dose (mouse, intraperitoneal) 500mg / kg
Use: Biochemical studies of organic synthesis.
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