1,1'-Biphenyl, 2,4',5-trichloro- (9CI) 16606-02-3 2,4',5-TRICHLOROBIPHENYL 2,4',5-Trichloro-1,1'-biphenyl 3-05-00-01740 (Beilstein Handbook Reference) 4,2',5'-Trichlorobiphenyl 63439-93-0 BRN 1961529 Biphenyl, 2,4',5-trichloro- Delor 103 PCB 31