1,1'-Biphenyl, pentachloro- (9CI) 25429-29-2 Apirolio 1476 C Biphenyl, pentachloro- Diphenyl pentachloride EINECS 246-974-2 Kanekrol 500 PENTACHLOROBIPHENYL Pentachloro(1,1'-biphenyl) Pentachloro-1,1'-biphenyl Pentachlorodiphenyl Pyralene 1476 Pyroclor 5