2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) Back Catalog number: 66189 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673066 Colchicine, 50mg Price on request C175350 Cannabinol, 5mg Price on request 30113 Carbon tetrachloride Price on request