Certificate Of Analysis
Product Name Xanthine,
BioUltra, ≥99%
Product Number X4002
Product Brand SIGMA
CAS Number 69-89-6
Molecular Formula C5H4N4O2
Molecular Weight 152.11
 
TEST SPECIFICATION LOT 059H5013 RESULTS
APPEARANCE WHITE TO LIGHT YELLOW POWDER WHITE POWDER
SOLUBILITY CLEAR COLORLESS TO LIGHT YELLOW SOLUTION (0.1 M SOLUTION IN 1 M SODIUM HYDROXIDE) COMPLETE COLORLESS (1 M SOLUTION IN 1 M SODIUM HYDROXIDE)
AMMONIA CONTENT <0.05%
RESIDUE ON IGNITION NMT 0.1% <0.1%
SULFATE NMT 0.05% <0.05%
INSOLUBLE MATTER NMT 0.1% <0.1%
ALUMINUM NMT 0.0005% <0.0005%
CALCIUM NMT 0.0005% <0.0005%
COPPER NMT 0.0005% <0.0005%
IRON NMT 0.0005% <0.0005%
LEAD NMT 0.001% <0.001%
MAGNESIUM NMT 0.0005% <0.0005%
PHOSPHORUS NMT 0.0005% <0.0005%
SODIUM NMT 0.005% <0.005%
ZINC NMT 0.0005% <0.0005%
POTASSIUM NMT 0.005% <0.005%
PURITY BY HPLC MINIMUM 99% >99.9%
RECOMMENDED RETEST SOP QC-12-006 4 YEARS JUNE 2003
QC RELEASE DATE JUNE 1999