D12-Benzo[a]pyrene, 100 µg/ml, Acetonitrile, 1ml

Metformin-d6 hydrochloride (dimethyl-d6),100 µg/mL,MeOH,1mL,

Octachlorostyrene, 20mg

Crufomate, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 299-86-5