Endosulfan-sulfate, 100 µg/ml, Acetonitrile, 5ml

Hexyl 2-ethylhexyl phthalate (isomer mixture), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 75673-16-4 (CAS of single isomer)

Colistin sulfate, 100mg

Tetradifon, 10.0 µg/ml, Ethyl acetate, 10ml