Piperacillin Sodium Salt

Perfluorohexanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 307-24-4

Benzyl butyl phthalate, 250mg

Silica (SiO2), 1000µg/ml in Water/0.5% NaOH, 100ml