N,N'-(1,2-Propylene)thiourea-d6, 1mg

Metformin-d6-HCl, 100μg/ml in MeOH, 5ml

Chloroacetic Acid, 100 µg/ml, Acetonitrile, 1ml

1,3,6,9-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane