METATAGS:CHLORENDIC ANHYDRIDE; 115-27-5; HET anhydride; Chloran 542; 1,4,5,6,7,7-Hexachloro-5-norbornene-2,3-dicarboxylic anhydride; 4,7-Methanoisobenzofuran-1,3-dione, 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetr
