A poisonous alkaloid compound found in hemlock plants that affects the nervous system.
From Latin 'conium' (hemlock plant) combined with the chemical suffix '-in' (indicating an alkaloid). The Romans named hemlock conium, and chemists later isolated this toxic compound.
This is the poison that killed the ancient Greek philosopher Socrates in 399 BCE—when he was forced to drink hemlock, conin shut down his nervous system. It's a chilling reminder that chemistry has been a tool of power and punishment for over 2,000 years.
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