Mass-Labelled HCH Solution/Mixture, 2µg/ml in Nonane, 1,2ml

2,3-Dichlorotoluene, 250mg

2,2',4,5,5'-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-73-2

Pesticide Mix #21, 10µg/mL in Cyclohexane, 1ml