Chlorophacinone

Chlorophacinone is produced by condensation of 1- phenyl-1-(4-chlorophenyl) acetone with dimethyl phthalate in the presence of sodium methoxide (31).
This compound was introduced in 1961 and is now widely used in Europe, the United States, and elsewhere. It is used in baits against norway rats at a concentration of 0.005–0.01%. Bait containing 0.025% chlorophacinone gave a complete kill of house mice after a 7-d feeding period but, in other tests, survivors were recorded following 10 and 21 days of feeding (5). Chlorophacinone acts as an uncoupler of oxidative phosphorylation as well as an anticoagulant (32), which is unusual among this group of compounds.