Nitrite as NO2-

2,2',4,4',5-Pentachlorobiphenyl, 100µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 38380-01-1

beta-Endosulfan, 10.0 µg/ml, Ethyl acetate, 10ml

2,5-Dimethylpyrazine, Research grade, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 123-32-0