Tri-o-tolyl phosphate, 1.2ml x 50ug/ml, toluene

Benzo(a)pyrene

Demeton-S-methyl-sulfone, 10.0 µg/ml, Acetonitril

3,4-Dimethylthieno[2,3-b]thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17502-58-1