nicotine molecule isolated grey |
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| navigate by keyword : alkaloid atom atomic atoms background caffeine carbon chemical chemistry cigarette compound cut formula grey isolated medical medicine model molecular molecule niacin nicotine out people research science scientific smoke stimulant structure substance tobacco |
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| Nicotine is a potent parasympathomimetic alkaloid found in the nightshade family of plants (Solanaceae) and a stimulant drug |
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