2,4-DB methyl ester

Cyanophos, 10.0 µg/ml, Ethyl acetate, 10ml

O,O-Diethyl dithiophosphate-13C4, ammonium salt,100 µg acid/mL,MeOH,1mL,

Endosulfan-sulfate, 100 µg/ml, Methanol, 1ml