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

Metazachlor OA, 10.0 µg/ml, Acetonitrile, 10ml

Di-n-butyltin dichloride, 1000µg/mL, Solvent-isooctane, Unit 5mL, # of units-1, Cas.no. 683-18-1

Hexachloro(13C6)benzene, 1.2mL x 100ug/mL, nonane