Mass-Labelled HCH Solution/Mixture, 2µg/ml in Nonane, 1,2ml Back Catalog number: MHCH-MXA Availability: In the manufacturer's stock Price on request - + Recommended 50797 Ammonium as NH3 Price on request C12216000 Dibromoacetic acid, certified, 0.25g Price on request EPA-1613CS0.5 Extended Calibration/Low Level Solution ((CS1)/2) , 500ul, nonane Price on request