Nonadecanoic acid-methyl ester, certified, 0.25g

PCB No. 121, 1000μg/ml in Isooctane, 1ml

Organophosphorus Pesticide Standard

3,3',4,4',5-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 57465-28-8