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

Copper (Cu), 1000µg/ml in 2%-HNO3/Water, 100ml

C29 Ring-C Monoaromatic sterane (5ß(H),10ß(CH3)/5 alpha(H),10 alpha(CH3)), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 205176-21-2 / 81943-51-3

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