2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Back Catalog number: 66174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91793 Pesticide Standard Price on request 672927 Triadimenol, 250mg Price on request 681684 2-Chlorophenol, 100 µg/ml, Methanol, 5ml Price on request