Difenzoquat methyl sulfate, 250mg

Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane

Ofloxacin, certified, 0.1g

Cyanazine-d5 (N-ethyl-d5), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1190003-29-2