Name :METHOD 1613 CLEAN-UP STANDARD Isotope: (37CL4, 96%) Catalog Number :EDF-6999 Quantity :7.5 ML Formula: no formula is available. Categories :Dioxin & Furan Mixtures (DFM), US EPA Method Mixtures (E) 2,3,7,8-TetraCDD (37Cl4,96%) 0.8 ng/mL