2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Back Catalog number: 63174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 40616 Benzo(b)fluoranthene, 100µg/ml in Acetonitrile, 1ml Price on request 79439 Leptophos Price on request 95685 Phthalate Mix #1 Price on request