1,2,3,4,6,7-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Metolachlor ESA-d6 Sodium Salt, 1mg

Progesterone-2,2,4,6,17 alpha,21,21,21-d9, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 15775-74-3

4-tert-Octylphenol-di-ethoxylate, 100 µg/ml, Acet