PCB Congeners & Hexachlorobenzene Mix #4 Back Catalog number: 95453 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended SCP150-100-245 CONOSTAN 1000ppm Standard, Cr, 50g Price on request 34651 n-Pentane Price on request MDD-0 [13C12]Dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request