2,3,3’,4,4’,5’-Hexachlorobiphenyl (157) Back Catalog number: 66157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96651 Internal Standard Price on request C17945200 p-Xylene, certified, 1ml Price on request 10009 Internal Std., 4000µg/ml Methylene Chloride, 1ml Price on request