The present invention relates to a hydrate of sulfonylurea compound represented by formula (I): having herbicidal activity, a process for producing the same, a suspension formulation containing the same, and the like.本發明係關於一種具有除草活性之式(I)所示的磺醯脲化合物之水合物:製備彼之方法、含彼之懸浮調配物及類似者。