alpha-HCH, 100 µg/ml, Acetonitrile, 5ml

n-Hexyl 4-hydroxybenzoate, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1083-27-8

PCB No. 112, 100ug/ml in Isooctane, 1ml

Butyltin trichloride, 100mg