2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C11920000 Cyromazine, 250mg Price on request 56082 Lead (Pb) Price on request 679930 p-Xylene, 5ml Price on request