Silver (Ag) Back Catalog number: 57347 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDD-1234 1,2,3,4-Tetrachloro[13C12]dibenzo-p-dioxin , 1.2ml x 50ug/ml, toluene Price on request 79363 trans-Chlordane Price on request 63065 2,3,5,6-Tetrachlorobiphenyl (65) Price on request