Oblon, Spivak, McClelland, Maier & Neustadt
Uracil derivatives
 The present invention relates to an uracil derivative represented by the formula (1): ##STR1## in which R.sup.1 represents hydrogen, alkyl or haloalkyl; R.sup.2 represents haloalkyl; R.sup.3 represents hydrogen, alkyl, haloalkyl, hydroxymethyl, halogen or nitro; R.sup.4 represents hydrogen or halogen; R.sup.5 represents hydrogen, halogen, nitro or cyano; X represents oxygen or sulfur: provided that the case where both of Da and Db represent hydrogen is excluded and a herbicide containing the same. The compound can be safely applied to important crops and shows high effect against many weeds in a low amount. 
Nissan Chemical Industries, Ltd.
A A C A C A C A C A A C C C C A A
A01N A01N C07D A01N C07D A01N C07D A01N C07D A01N A01N C07D C07F C07D C07D A01N A01N
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Jun Hiroshi Tsutomu Kenzou Kimihiro Yasuo Shigeomi Toshiharu Koichi Kaoru
Satow Kita Nawamaki Fukuda Ishikawa Kawamura Watanabe Endo Suzuki Itoh