13C,15N2-Nitrofurazone, 10mg

Metazachlor-oxalamic acid (OA), 10mg

Dibenzo[h,rst]pentaphene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-47-2

2,2',3,3',5,5'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,