2,2',3,3',4',5,6-Heptachlorobiphenyl (177) Back Catalog number: 66177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79640 Bifenthrin Price on request 50110 TOC Calibration Set Price on request 675833 Mecarbam, 100 µg/ml, Toluene, 5ml Price on request