Color Back Catalog number: 50818 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BDF-28 2,8-Dibromodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 2031.12-50-NN 2,7-Dichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 96807 Custom Surrogate Standard Mix Price on request