2,3,4,4'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Fipronil, 100 µg/ml, Acetonitrile, 5ml

Chlorfenvinphos, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 470-90-6

EDDP-d3 perchlorate,1000 µg/mL (as pyrrolinium) ,MeOH,1mL,