PCB No. 21, 100µg/ml in Isooctane, 1ml

4-Methylpyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3353-12-6

D3-Alachlor ESA sodium salt, 10mg

3,4,5-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane