Naphthalene, 10µg/ml in Acetonitrile, 10ml

(2-Chloroethyl) Phosphonic Acid-d4, 1mg

Chlorpyrifos, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 2921-88-2

Metformin-d6 HCl, 1000µg/ml in MeOH, 1ml