Metformin-d6 HCl, 1000µg/ml in MeOH, 1ml

2-Carboxy-4-chlorophenoxyacetic acid, 10mg

p-n-Nonylphenol Diethoxylate (ring-13C6), 100µg/ml in Nonane, 1,2ml

Avermectin B1b, 100 µg/ml, Acetonitrile, 1ml