Toxic organic compound of some plants with carbon atoms, hydrogen and oxygen very present in the tonka bean, fruit of the dipteryx odorata, tree of the fabaceous family of French Guiana that the natives called cumarú. The compound is also contained by plants from our environment such as fatlobo, smell clover, the queen of forests and the cinnamon tree. It has a taste between cinnamon and nutmeg and anticoagulant properties especially in combination with some fungi.