Dicofol, 100 µg/ml, Toluene, 5ml

Neopinone, 100µg/m, Solvent-chloroform, Unit 1mL, # of units-1, Cas.no. 509-66-0

PCB No. 121, 1000μg/ml in Isooctane, 1ml

4-Dimethylaminoazobenzene