trichlorobenzene hexachlorobiphenyl 3,4,5,3',4',5'-Hexachlorobiphenyl PCB 169 InChI=1S/C12H4Cl6/c13-7-1-5(2-8(14)11(7)17)6-3-9(15)12(18)10(16)4-6/h1-4H 357.84442 CHEBI:81517 ZHLICBPIXDOFFG-UHFFFAOYSA-N C12H4Cl6 KEGG:C18115 0 CAS:32774-16-6 Clc1cc(cc(Cl)c1Cl)-c1cc(Cl)c(Cl)c(Cl)c1 chebi_ontology 360.87800