2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95149 Aramite Price on request 677929 Thionazin, 100 µg/ml, Ethyl acetate, 1ml Price on request 677133 1-Methylnaphthalene, 250mg Price on request