Pentachlorobenzene, 1000ug/ml in MeOH, 1ml

PCB No. 141, 100µg/ml in Isooctane, 1ml

4,4'-Difluorobiphenyl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 398-23-2

PCB Congener Mix #3