2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Back Catalog number: 66171 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678151 Terbufos-sulfoxide, 100 µg/ml, Acetonitrile, 1ml Price on request 682136 Piperine, 50mg Price on request 676463 Nonafluoropentanoic acid, 100mg Price on request