Clazuril

Modify Date: 2024-01-10 19:35:32

Clazuril Structure
Clazuril structure
Common Name Clazuril
CAS Number 101831-36-1 Molecular Weight 373.19300
Density 1.48g/cm3 Boiling Point N/A
Molecular Formula C17H10Cl2N4O2 Melting Point 196.8°
MSDS N/A Flash Point N/A

 Use of Clazuril


Clazuril (R62690) has a coccidiocidal effect on the asexual and sexual developmental stages of both Eimeria species, resulting in a complete interruption of the life cycle[1].

 Names

Name 2-[2-chloro-4-(3,5-dioxo-1,2,4-triazin-2-yl)phenyl]-2-(4-chlorophenyl)acetonitrile
Synonym More Synonyms

 Clazuril Biological Activity

Description Clazuril (R62690) has a coccidiocidal effect on the asexual and sexual developmental stages of both Eimeria species, resulting in a complete interruption of the life cycle[1].
Related Catalog
In Vivo Clazuril (2.5 mg/pigeon) results in a rapid suppression of oocyst excretion, but oocysts are again observed in the feces 20 days after treatment. The fact that oocysts appears again in the feces 3 to 5 weeks after treatment can probably be explained only by a persistence of endogenous stages, which are not affected during treatment, rather than by a reinfection [2].
References

[1]. W Coussement, et al. Action of the anticoccidial clazuril on the endogenous stages of Eimeria labbeana and E columbarum in experimentally infected pigeons. Res Vet Sci. 1988 Jul;45(1):117-9.

[2]. J Vercruysse, et al. Efficacy of toltrazuril and clazuril against experimental infections with Eimeria labbeana and E. columbarum in racing pigeons. Avian Dis. Jan-Mar 1990;34(1):73-9.

 Chemical & Physical Properties

Density 1.48g/cm3
Melting Point 196.8°
Molecular Formula C17H10Cl2N4O2
Molecular Weight 373.19300
Exact Mass 372.01800
PSA 91.54000
LogP 2.88308
Index of Refraction 1.692

 Synthetic Route

~11%

Clazuril Structure

Clazuril

CAS#:101831-36-1

Literature: Janssen Pharmaceutica N.V. Patent: US4631278 A1, 1986 ;

 Articles6

More Articles
Efficacy of selected coccidiostats in sandhill cranes (Grus canadensis) following challenge.

J. Zoo Wildl. Med. 36(3) , 391-400, (2005)

The anticoccidial efficacy of amprolium, clazuril, and monensin were studied in sandhill cranes (Grus canadensis) infected with a mixture of Eimeria spp. oocysts. Five groups of four 1-day-old sandhil...

Action of the anticoccidial clazuril on the endogenous stages of Eimeria labbeana and E columbarum in experimentally infected pigeons.

Res. Vet. Sci. 45(1) , 117-9, (1988)

Racing pigeons were artificially infected with a mixed inoculum of Eimeria labbeana (85 per cent) and E columbarum (15 per cent) and treated orally with 2.5 mg clazuril either on day 1, 2, 3, 4, 5, 6 ...

Efficacy of toltrazuril and clazuril against experimental infections with Eimeria labbeana and E. columbarum in racing pigeons.

Avian Dis. 34(1) , 73-9, (1990)

The efficacy of toltrazuril in comparison with clazuril on heavy experimental Eimeria labbeana and E. columbarum infections in pigeons was investigated. The minimum required dose of toltrazuril to com...

 Synonyms

CLAZURIL
Clazurilum [Latin]
[2-chloro-4-(3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3h)-yl)phenyl](4-chlorophenyl)acetonitrile
Clazurilo [Spanish]
Clazuril (USAN/INN)
Clazurilo
Clazurilum
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