Aroclor 1254

gamma-HCH, 250mg

Mass-Labelled PCB Syringe Spike Solution, 1.2ml, nonane

GC-IRMS Standards ((C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15); C40 (?13C: -27.05)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no.