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 C11044000 Carminic acid (E120), certified, 0.1g Price on request 676837 Ipronidazole-hydroxy, 10mg Price on request 94239 PCB Congeners Standard Price on request