Fenthion-sulfoxide, 100 µg/ml, Acetonitrile, 5ml

2,2-Bis[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl]propane, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 21850-44-2

2 alpha,17 alpha(H),21ß(H)-2-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 126208-29-7

Chlorpyrifos-methyl, 10.0 µg/ml, Ethyl acetate,