Acetone

Metformin-d6-HCl, 100µg/ml in Acetonitrile, 1ml

3,3'-Dimethyl-4,4'-diaminodiphenylmethane,100 µg/mL,acetonitrile,1mL,

N-Nitrosodipropylamine, 100 µg/ml, Methanol, 5ml