Nitrofen, 100 µg/ml, Ethyl acetate, 1ml

Paraxanthine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 611-59-6

Heptachlor epoxide

4,5,9,10-Tetrahydropyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 781-17-9