2,3,3’,4,4’,5’-Hexachlorobiphenyl (157) Back Catalog number: 66157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DFP-LCS-B20 Mass-Labelled PCDDs/PCDFs/PCBs Solution/Mixture, 1.2ml, nonane Price on request 676903 Iodosulfuron-methyl sodium, 100mg Price on request 677903 Edifenphos, 100 µg/ml, Acetonitrile, 1ml Price on request