2,2',3,4,4',5',6-Heptachlorobiphenyl (183) Back Catalog number: 66183 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2663.10-100-CY Toxaphene Price on request 70888 Dichloroacetic acid Price on request 79675 1,2,4-Trichlorobenzene Price on request