Iohexol, 100 µg/ml in Acetonitrile, 5ml

1,4-Naphthoquinone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 130-15-4

Pentachloroanisole

D5-Metamitron, 100 µg/ml, Acetonitrile, 1ml