2,4'-DDE, 100 µg/ml, Ethyl acetate, 5ml

tert-Amyl methyl ether, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 994-05-8

CONOSTAN Standard S-21, 500 ppm, 100g

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