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

N-2,4-Dimethylphenyl-N'-methylformamidine HCl, 10m

N-Nitrosodiethanolamine, 100 µg/ml, Methanol, 5m

Phthalic acid, bis-methylglycol ester, certified, 0.25g