A chemical anticoagulant used in medicine to prevent blood clots, known for its rat poison applications.
From 'di-' (two) + 'coumarin' (a naturally occurring compound found in plants). Developed in the 20th century as a synthetic derivative of coumarin with therapeutic applications.
Dicoumarin was originally discovered when farmers noticed cattle eating spoiled clover hay kept bleeding uncontrollably—this accidental observation led to one of medicine's most important anticoagulants!
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