2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Back Catalog number: 63171 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C14790000 MCPB, 100mg Price on request 96794 Aldicarb Price on request 674561 Clofentezine, 100mg Price on request