2,3,4,4',5,6-Hexachlorobiphenyl (166) Back Catalog number: 66166 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71469 4,4-Dimethyl-2-neopentyl-1-pentene Price on request 90591 Simazine Price on request 95355 Organic Acid Kit Price on request