structural chemical formula caffeine molecule with roasted coffee beans |
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| navigate by keyword : alkaloid aroma atom beans beverage black brain brown caffeine central chemical chemistry coffee concept drink drug energy formula freshness grain group molecule natural nervous nitrogen organic paper psychoactive receptor roast roasted scientific seed sign stimulant structural symbol system |
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| Structural chemical formula of caffeine molecule with roasted coffee beans. Caffeine is a central nervous system stimulant, psychoactive drug molecule |
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