2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Back Catalog number: 63174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674901 Phenacetin, 250mg Price on request C10810000 Bronopol, 250mg Price on request 71652 2-Chloroacrylonitrile Price on request