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 53144 EPA 1638Mix A Price on request 673999 4-Chloroaniline, 1000mg Price on request 50096 Metals Calibration Standard Price on request