Acetonitrile

Perfluoro-n-[3,4,5-13C3]pentanoic acid, 1.2ml x 50ug/ml, methanol

1,2,3,7,8-Pentachloronaphthalene, 1.2mL x 50ug/mL, nonane

Endosulfan alcohol, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2157-19-9