1,3,4,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Back Catalog number: DF-1348-S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 3956.15-K-IO Tetra-n-pentyltin, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3765-65-9 Price on request VHG-SDSL-500-100 Sulfur, 500µg/g (0.0500 wt%) in Diesel Fuel, 100ml Price on request 97742 EPA Method 8270 PAH Standard Price on request