o-Toluidine, 100 µg/ml, Methanol, 5ml

Pyridaphenthion, 10.0 µg/ml, Ethyl acetate, 10ml

PCB No. 4, certified, 25mg

Ronnel , 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 299-84-3