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 97680 PAH Spike Stock Price on request WP-CS1,2,3,4,5,6, Individual Calibration Solutions, 500ul, nonane Price on request 675866 4-Methylhippuric acid, 100mg Price on request