Ammonium (NH4+)

Dioxin-Like PCBs Individual Calibration Sol. CS4., in Nonane, 500µl

Parathion-ethyl, 100µg/ml in Acetonitrile, 5ml

Hexadecyltrimethylammonium bromide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 57-09-0