Fenthion-oxon-sulfoxide, 100 µg/ml, Acetonitrile,

n-Propyl 4-hydroxybenzoate-2,3,5,6-d4, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219802-67-1

2,3,7,8-Tetrachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL,

1,2,8,9-Tetrachlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.