Heptachlor, 1000µg/ml in Hexane, 1ml

GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no.

PCB Congeners & Hexachlorobenzene Mix #2

Pyrazophos, 100 µg/ml, Toluene, 1ml