Search results
Results From The WOW.Com Content Network
Coumarin (/ ˈ k uː m ər ɪ n /) or 2H-chromen-2-one is an aromatic organic chemical compound with formula C 9 H 6 O 2.Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by an unsaturated lactone ring −(CH)=(CH)−(C=O)−O−, forming a second six-membered heterocycle that shares two carbons with the benzene ring.
Coumarin has been linked to liver failure, but only at unreasonably high concentrations. ... meaning it has to be expertly butchered and processed in order to be safe for consumption. The U.S ...
A male Xylocopa virginica (Eastern Carpenter bee) on Redbud (Cercis canadensis). Bees can suffer serious effects from toxic chemicals in their environments. These include various synthetic chemicals, particularly insecticides, as well as a variety of naturally occurring chemicals from plants, such as ethanol resulting from the fermentation of organic materials.
In 2008, the European Food Safety Authority considered the toxicity of coumarin, a component of cinnamon, and confirmed a maximum recommended tolerable daily intake (TDI) of 0.1 mg of coumarin per kg of body weight. Coumarin is known to cause liver and kidney damage in high concentrations and metabolic effect in humans with CYP2A6 polymorphism.
Phenprocoumon (marketed under the brand names Marcoumar, Marcumar and Falithrom) is a long-acting anticoagulant to be taken by mouth, and a coumarin derivative. [2] It acts as a vitamin K antagonist and inhibits blood clotting (coagulation) by blocking synthesis of coagulation factors II, VII, IX and X.
Because of this, people taking anticoagulant medications such as aspirin, coumarin, and warfarin may want to consult with their doctor about any dietary restrictions, including fish." This article ...
Coumarin This molecule does not affect coagulation: 4-Hydroxycoumarin This molecule does not affect coagulation, but is a known carcinogen in diesel fumes and tobacco smoke; in the latter, it probably derives from combustion of the tobacco additive coumarin. Dicumarol This molecule was the first discovered 4-hydroxycoumarin anticoagulant.
3-Phenylcoumarins have been synthesized through various means, starting with different precursors and catalysts with goals of achieving better yield, different conditions of the final product for producing derivatives, ease of purification, lower toxicity or environmental impact, or other considerations. [5]