Caffeine structure description11/23/2023 It is also moderately soluble in ethanol (1.5 g/100mL).Ĭaffeine is an achiral molecule without stereoisomers. Caffeine is moderately soluble in water at room temperature (2 g/100mL), but very soluble in boiling water (66 g/100mL). Pure anhydrous caffeine is a white colorless powder with a melting point of 227° C to 228° C. Shipping InformationĬontact The Chemical Company for current packaging options, lead times and supply chain updates. This amounts to one serving of a caffeinated beverage for every person every day. Global consumption of caffeine has been estimated at 120,000 tons per year, making it the worlds most popular psychoactive substance. In North America, 90% of adults consume caffeine daily. It is both legal and unregulated in nearly all parts of the world. It is the world’s most widely consumed psychoactive drug. In humans, caffeine acts as a central nervous system stimulant, temporarily warding off drowsiness and restoring alertness. It is most commonly consumed by humans in infusions extracted from the seed of the coffee plant and the leaves of the tea bush, as well as from various foods and drinks containing products derived from the kola nut. Caffeine is found in varying quantities in the seeds, leaves, and fruit of some plants, where it acts as a natural pesticide that paralyzes and kills certain insects feeding on the plants. Caffeine is a bitter, white crystalline xanthine alkaloid that acts as a stimulant drug and a reversible acetylcholinesterase inhibitor.
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