2,2',3,3',4',5,6-Heptachlorobiphenyl (177) Back Catalog number: 66177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8466.3-100-CY Ethylenethiourea Price on request 678409 Fenitrothion, 100 µg/ml, Acetonitrile, 5ml Price on request 94491 Phenol Mix Price on request