2,7-Dichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

Dow 624B Volatile Internal/Surrogate Standard

D4-Imidacloprid, 100 µg/ml, Acetone, 1ml

1,4-Dihydroxynaphthalene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 571-60-8