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 677799 Succinic acid, 250mg Price on request 79149 4,4’-DDE Price on request 90291 Perylene-d12 Price on request