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 55210 WS Low Level Perchlorate Price on request 79207 Dibenzo(a,h)anthracene Price on request 50131 ICP-MS Mix Price on request