Atrazine-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL,

4H-Cyclopenta[def]phenanthren-4-one, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5737-13-3

Vamidothion sulfone, 25mg

5-Methylnonane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 15869-85-9