alpha-Cypermethrin, 100mg

Nafronyl oxalate salt, 100µg/ml in Acetonitrile, 5ml

Methamidophos, 100μg/mL in Acetonitrile, 1ml

2,3',4,5,5'-Pentachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene