624B Internal / Surrogate Standard

Dimethenamid ESA sodium salt, 25mg

Camphechlor (Toxaphene), 100 µg/ml, Ethyl acetate

4,4'-Dinitrobiphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1528-74-1