beta-Endosulfan, 100 µg/ml, Methanol, 1ml

Disulfoton-sulfoxide, 100 µg/ml, Acetonitrile, 5

Methiocarb, 100 µg/ml, Ethyl acetate, 5ml

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