2,4,5-Trichlorophenol, certified, 0.1g

1,2,3,4,6,8-Hexachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

n-Heneicosane, ?13C: -28.59, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-94-7

Dimethipin, 10 µg/ml, Methanol, 10ml