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US4344951A N-Benzoyl N'-pyridyloxy phenyl urea 失效
N-苯甲酰基N' - 吡啶氧基苯基脲

N-Benzoyl N'-pyridyloxy phenyl urea
摘要:
N-benzoyl N'-pyridyloxy phenyl ureas having the formula ##STR1## wherein X represents a halogen atom; R represents a C.sub.1 -C.sub.4 alkyl group and n is 0, 1 or 2 are useful as insecticides.
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