Xanthine 98%

Fornitore: Thermo Scientific

ACRO149170250EA 148 CHF
ACRO149170250 ACRO149170050 ACRO149171000
Xanthine 98%
Formula: C₅H₄N₄O₂
Peso molecolare: 152,11 g/mol
Punto di fusione: >300 °C
Temperatura di stoccaggio: Ambiente
MDL Number: MFCD00078453
CAS Number: 69-89-6
EINECS: 200-718-6
Merck Index: 12,10193

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Risultati del test di specificazione

Appearance White to light yellow Powder
Infrared spectrum Conforms
Loss on drying ≤1 % (105°C, 5 hrs)
Sulfated ash ≤0.2 % (800°C)
HPLC ≥97.5 %
TLC Homogeneous
UV spectrophotometry 98 to 102 % (lambda max. 278 nm, pH 10)
UV spectrophotometry molar absorptivity 9300 +/- 2%, on dry basis
Appearance of solution (c=1, 1M NaOH) clear colorless to light yellow soln
Heavy metals (as Pb) ≤10 ppm

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