Caffeine (Natural and Synthetic)
CAS Number: 58-08-2
Molecular Formula: C8H10N4O2
Molecular Weight: 194.19
Characters: A white, crystalline powder
Identifications: Positive reaction
Acidity: 10ml of solution S consumes 0.01mol/l
NaOH <0.2ml
10ml S 0.01mol/l NaOH <0.2ml
NaOH <0.2ml
10ml S 0.01mol/l NaOH <0.2ml
Appearance of solution: Clear, colorless
Readily Carbonizable Substance: No more color than Matching Fluid D
Other Alkaloids: No precipitate is formed
Organic Volatile Impurities: Meets with requirements
Heavy Metals: <10ppm
Sulphates: <500ppm
Related Substances: <0.1%
Chromatographic Purity: <0.1%
Loss on Drying: <0.5%
Sulphated Ash: <0.1%
Melting Point: 235~239°C
Assay: 98.5~101.0%
