Group 3 PCB’s - Low Toxicity Congeners

Benzocaine,1000 µg/mL,acetonitrile,1mL,

25-Hydroxyvitamin D2-d6 (Dimethyl 26,27-d6)

2,2',3,5,6,6'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,