D4-1H-Benzotriazole, 10.0 µg/ml, Methanol, 10ml

Hansa Yellow G, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 2512-29-0

PCB No. 184, 100µg/ml in Isooctane, 1ml

2,4,4,5-Tetrachlorobiphenyl (BZ-74)