1,2,4,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Back Catalog number: DF-1247-S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended PCB-IS-A100 Mass-Labelled PCB Solution, 1.2ml x 100ng/ml, nonane Price on request 2195.11-K-ME 1-Methyl-4-nitronaphthalene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 880-93-9 Price on request 676238 Chlorpropham, 100 µg/ml, Acetonitrile, 1ml Price on request