Introduction: Caffeine is found in varying quantities in the beans, leaves, and fruit of some plants. In humans, caffeine is a central nervous system (CNS) stimulant, having the effect of temporarily warding off drowsiness and restoring alertness. The U.S. Food and Drug Administration (FDA) lists caffeine as a "multiple purpose generally recognized as safe food substance".
Appearance: Odorless white powder or white glistening needles, usually melted together. Bitter taste. Solutions in water are neutral to litmus. Odorless.
Molecular formula: C8H10N4O2
Molecular weight: 194.19
CAS Number:58-08-2
Application: Cardiac and respiratory stimulant; diuretic
Effects: An array of studies found that caffeine could have nootropic effects, inducing certain changes in memory and learning. Research suggests that drinking caffeinated coffee can cause a temporary increase in the stiffening of arterial walls.
Specification: BP2009/USP32/EP6.1
ITEM |
Analysis standard |
characteristics |
A white crystalline powder or silky wite crystals |
Identification |
Positive reaction |
Examining |
|
Melting point |
235.0-239.0℃ |
Clarify and colour |
pass |
Heavy metals |
≤10ppm |
Sulphate |
≤500ppm |
Related substances |
Pass |
Acidity or alkalinity |
Pass |
Chromatographic purity |
Pass |
Readily carbonizable substances |
Pass |
Other alkaloids |
Pass |
Loss on drying |
≤0.5% |
Sulphater ash |
≤0.1% |
BP2009/USP32/EP6.1 |
|
