2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Back Catalog number: 66128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3435.10-100-CY Mecoprop Price on request 2721.16-K-IO 4,4'-Dimethylbibenzyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 538-39-6 Price on request VHG-SDSL-10-100 Sulfur Standard: S @ 10 µg/g (0.0010 wt%) in #2 Diesel Fuel, 100ml Price on request