Fipronil sulfide is a degradation product of the broad spectrum insecticide fipronil, which is found to be toxic to a variety of non-target organisms. Synonyms: 5-Amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-trifluoromethylsulfanyl-1H-pyrazole-3-carbonitrile;…