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 92399 Herbicide Free Acids Price on request 678492 Propyzamide, 100 µg/ml, Acetonitrile, 5ml Price on request 58052 Tellurium (Te) Price on request