Metamitron, 10 µg/ml, Acetonitrile, 10ml

Tetrabutylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1643-19-2

Metoprolol, 1000µg/ml in MeOH, 1ml

2-Chlorobenzoic acid, 1000mg