2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5

iso-Propyl 4-hydroxybenzoate-2,3,5,6-d4, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1219798-72-7

PCB No. 166, 10 ng/µl, 10ml

Benzo[e]pyrene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205440-82-0