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 HPCHLOR Heptachlor, 1.2mL x 100ug/mL, nonane Price on request 72849 Alachlor OA, 1000µg/ml in Acetonitrile, 1ml Price on request 682965 5-Aminosalicylic acid, 1000mg Price on request