Ключевые слова: 3d rendering, adenosine, alkaloid, atom, atomic, caffeinated, caffeine, carbon, chemical, chemical structure, chemistry, coffee, cola, compound, decaffeinated, dependence, education, formula, guarana, guaranine, hydrogen, illustration, intoxication, kola, methyltheobromine, molecular, molecule, oxygen, schematic, science, stimulant, structural formula, structure, study, tea, xanthine,