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 71343 2,2-Dimethylheptane Price on request 674694 Napropamide, 100mg Price on request 52079 Instrument Standard 3 Price on request