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 71367 Kerosene K2 Price on request 677039 2-Thiouracil, 250mg Price on request 94237 8260B Extra Compounds Primary Mix Price on request