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 N-ETFOSA-M N-ethylperfluoro-1-octanesulfonamide, 50µg/ml in MeOH, 1,2ml Price on request 93608 525Mix Price on request 677709 1-Methylnaphthalene, 100 µg/ml, Acetonitrile, 1m Price on request