| 摘要 |
<p>1420683 Coccidiostatic compositions containing 1-(substituted phenyl)-tetrazoles MERCK & CO INC 2 July 1973 [10 July 1972] 31438/73 Heading A5B [Also in Division C2] Novel compounds I in which R 1 is hydrogen or C 1-6 alkyl, R 2 is nitro or trihalomethyl and R 3 is halophenylsulphonyl or amino (optionally mono- or disubstituted by C 2-6 alkanoyl or C 1-6 hydroxyalkyl) with the proviso that when R 3 is NH 2 then R 2 is trihalomethyl are coccidio stats and form with a carrier or diluent a composition suitable for feeding to animals. The compositions may also contain sulpha compounds such as sulfaquinoxaline, 4, 4'-dinitrocarbanilide-2-hydroxy-4, 6-dimethylpyrimidine complex, 3, 3'-dinitro phenyl disulphide, 5-nitrofurfural semicarbazone, amprolium, 3, 5-dinitro-o-toluamide, buquinolate and ethopabate.</p> |
