产品描述

Product    Caffeine Anhydrous  
Characteristics    White or almost white, crystalline powder  (BP/EP) or silky, white or almost white, crystals
Melting Point       234.0-239.0°C  (BP/EP)
Infrared Absorption     Conforms to the caffeine Reference Spectrum (BP/EP)
Loss on drying     See Tests (BP/EP)
Appearance of solution      Clear,colourless  (BP/EP)
Heavy metals             =<0.001% (USP)
Sulphate          =<500ppm (BP/EP)
Each impurity A,B,C,D,E,F     =<0.10% (BP/EP)
Unspecified impurities        =<0.10% (BP/EP)
Total impurities         =<0.10% (BP/EP)
Any individual impurity    =<0.10% (USP)
Total impurities       =<0.10% (USP)
Loss on drying        =<0.50% (BP/EP)
Residue on ignition       =<0.10% (USP)
 Assay    98.5-101.0%(USP)
Storage condition    Keep in a tightly closed container,