2,2',3,3',4,5',6,6'-Octachlorobiphenyl (201) Back Catalog number: 66201 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended H998200 Hyperoside, 5mg Price on request 54174 Ferrous Iron (Fe) Price on request 97279 Aliphatic Internal Standard Price on request