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

Fentanyl impurity A, 25mg

2,2',4,4',5,5'-Hexabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 68631-49-2

Azinphos-methyl, 100 µg/ml, Toluene, 1ml