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 676263 Hexestrol, 100mg Price on request 688005 Maltotetraose, 10mg Price on request 58116 Sulfur (S) Price on request