Metformin-HCl, 100µg/ml in Acetonitrile, 5ml

Oxydemeton-methyl, 25mg

n-Eicosane, ?13C: -33.06, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 112-95-8

1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone, 50mg