Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1986-08-18
1988-11-08
Robinson, Allen J.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
A01N 4316
Patent
active
047834811
ABSTRACT:
Rodenticidal compositions comprising a rodenticidally effective amount of an isomer of a 3-substituted-4-hydroxycoumarin rodenticide which is capable of existing in more than one stable isomeric form. The isomer, for example, the trans isomer of brodifacoum, is significantly less persistently retained in the tissues of non-rodent mammalian or avian species likely to consume the composition or poisoned rodent carcasses than other isomers of the same 3-substituted-4-hydroxycoumarin. The compositins are substantially free of such other isomers, e.g., the cis isomer of brodifacoum, thereby reducing the risk to non-target species from accidental ingestion.
REFERENCES:
patent: 3764693 (1973-10-01), Bojchetti et al.
patent: 4035505 (1977-07-01), Hadler et al.
patent: 4520007 (1985-05-01), Entwistle et al.
Hadler et al., Nature (Lond), 253, pp. 275-277 (1975).
Dubock et al., "Brodifacoum (TALON Rodenticide), A Novel Concept", Paper Presented at 8th Vertibrate Pest Conference, Sacramento, Co. Mar. 1978.
Meehan, A. P., Rats and Mice, Their Biology and Control (Rentokil Library, 1984) at pp. 151-8.
Imperial Chemical Industries plc
Robinson Allen J.
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