Caffeine Chemical Formula

Caffeine, also known by the name IUPAC name 1, 3, 7-Trimethylpurine-2,6-dione, has a chemical formula C8H10N4O2. Caffeine is found in common food and beverages that we consume every day, such as coffee and tea. Coffee and tea leaves contain a maximum of 5 % of the caffeine in them. In chemical laboratories, caffeine is prepared by the reaction between dimethylurea and malonic acid. In this short piece of article, let us learn more about the caffeine chemical formula, its chemical and physical properties along with its chemical structure.

Physical Properties of Caffeine

Caffeine Physical Properties
Name Caffeine
Also Known as Trimethylxanthine, mateine, theine, guaranine, methyltheobromine
Appearance Odourless, white needles or powder
Molecular Formula C8H10N4O2
Melting Point of Caffeine 235 °C
Boiling Point of Caffeine 178 °C
Density 1.23 g/cm³
Molar Mass 194.19 g/mol
Solubility in Water Slightly Soluble

Chemical Structure of Caffeine

Caffeine is an alkaloid and is formed by pyrimidinedione and imidazole rings which are fused together. It should be noted that pyrimidinedione is a 6-member ring having 2 nitrogen atoms while an imidazole ring is a 5-member ring having 2 nitrogen atoms.

Chemical Structure of Caffeine

Caffeine Uses

  • Commonly used stimulants in athletes
  • Caffeine creams are applied to the skin to reduce redness and itching in dermatitis.
  • Caffeine is used as an ingredient in energy drinks, soft drinks and other beverages.

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