4,4'-DDE, 100 µg/ml, Toluene, 5ml

n-Eicosane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 112-95-8

EPA Method 8060 QC Check Solution

Triclosan, purified 99%,50 µg/mL,n-nonane,1mL,