Mitsui Toatsu Chemicals, Incorporated

Tekeo Yoshimoto

Hideo Yamazaki

Mitsumasa Umemoto

Keiichi Igarashi

Yoshio Takasawa

Hirohisa Yanagita

Disclosed are novel 3-nitrobenzene sulfonanilide derivatives and, among others, that of the formula ##STR1## as well as fungicidal compositions containing such compounds as the active ingredient. The compounds of the invention are markedly effective in controlling plant diseases and, in particular, clubroot disease of Brassica spp., have no toxicity to men, beasts, and fishes, exert no phytotoxicity on crops, have neither irritant nor unpleasant odor, and manifest their excellent fungicidal effect at low concentrations. Accordingly, they are ideally useful in fungicidal compositions.

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Yokohama, Japan

Tekeo Yoshimoto