2,2',3,3',4',5,6-Heptachlorobiphenyl (177) Back Catalog number: 63177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95424 MSTFA Price on request 70113 Dibenzo(a,h)pyrene Price on request 11848.10-1 ML n-Decanal,neat,neat,1mL, Price on request