Endosulfan (alpha and beta), 100 ng/µl, 1ml

2H,2H-Perfluorodecanoic acid, 50µg/ml in Acetone, 5ml

4-Isopentylphenol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1805-61-4

2,5-Dichlorobiphenyl ,100 µg/mL,isooctane,1mL,