2,2',3,4,4',5',6-Heptachlorobiphenyl (183) Back Catalog number: 66183 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93932 EPA 505 Pesticide Standard Price on request 58013 Aluminum (Al) Price on request 673203 Atrazine, 100 µg/ml, Acetonitrile, 5ml Price on request