Atrazine-desethyl-2-hydroxy, 100 µg/ml, 2-Methoxy

Trixylyl phosphate, purified ion m/z 424 (heptamethyl),100 µg/mL,isooctane,1mL,

15N3-Atrazine-desethyl, 100 µg/ml, Acetonitrile,

BHC (delta isomer-13C6), 100µg/ml in Nonane, 1,2ml