Hexavalent Chromium (Cr 6+)

Methyl nonadecanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1731-94-8

2,4-Dibromo[13C6]phenol, 1.2ml x 100ug/ml, toluene

Chlorpyrifos, 10.0 µg/ml, Acetonitrile, 10ml