PCB No. 21, 100µg/ml in Isooctane, 1ml

5-Methylbenzotriazole-d6, 1mg

2,2',3,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 36559-22-5

Pyrazosulfuron-ethyl, 100mg