Hexachlorobenzene, 250mg

2-Isobutyl-3,5-dimethylpyrazine and 2-isobutyl-3,6-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

EPA Method 533 Isotope Dilution Standard PDS, in MeOH, 1,2ml

Chlorpyrifos, 100µg/mL in MeOH, 1ml