PCB Congener Mix #4

2,2',3,3',4,4',5,5',6-Nonabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 63387-28-0

2,3,3',4,6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Sulfamethazine, 100 µg/ml, Methanol, 1ml