2411. Closantel

Nomenclature

CAS number: 57808-65-8
N-[5-Chloro-4-[(4-chlorophenyl)cyanomethyl]-2-methylphenyl]-2-hydroxy-3,5-diiodobenzamide; R-31520; Flukiver (Janssen); Seponver (Ethnor).
C22H14Cl2I2N2O2; mol wt 663.07.
C 39.85%, H 2.13%, Cl 10.69%, I 38.28%, N 4.22%, O 4.83%.

Description and references

Salicylanilide derivative. Prepn: M. A. C. Janssen, V. K. Sipido, BE 839481; eidem, US 4005218 (1976, 1977 both to Janssen). Effectiveness against Taenia pisiformis in rabbits: R. A. F. Chevis et al., Vet. Parasitol. 7, 333 (1980); against Ancylostoma caninum: J. Guerrero et al., J. Parasitol. 68, 616 (1983); against Fasciola hepatica in sheep: B. E. Stromberg et al., ibid. 70, 446 (1984). Prolonged effect on Haemonchus contortus in sheep: C. A. Hall et al., Res. Vet. Sci. 31, 104 (1981). Acts by uncoupling oxidative phosphorylation: H. Van den Bossche et al., Arch. Int. Physiol. Biochim. 87, 851 (1979); H. J. Kane et al., Mol. Biochem. Parasitol. 1, 347 (1980).

Chemical structure

Properties

Crystals from methanol, mp 217.8°.

Therapeutic Category (Veterinary)

Anthelmintic.