Tolpyralate, 100 µg/ml, Acetonitrile, 1ml

Benzo[a]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 50-32-8

d2 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 10 x 1ml

Endosulfan-I-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 203645-57-2