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 32791 2-Methylheptane Price on request 93606 Benzene & 1,2-Dichloroethane Price on request 94270 Volatile Standard Price on request