N-Nitroso-N-ethylurea

WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml

2,2',3,3',4',5,6-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-70-4

Volaton