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 66203 2,2',3,4,4',5,5',6-Octachlorobiphenyl (203) Price on request 8221.7-100-AN Mevinphos, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 7786-34-7 Price on request 79565 Tetraethyllead Price on request