Find more information here fipronil Synonyms: 5-Amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-trifluoromethanesulfinyl-1H-pyrazole-3-carboxamide Molecular Formula: C12H6Cl2F6N4O2S Molecular Weight: 455.16 Linear Structural Formula: C12H6Cl2F6N4O2S MDL Number: MFCD08273873 …