2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Back Catalog number: 66128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677372 Propachlor ESA sodium salt, 100µg/ml, Acetonitrile, 1ml Price on request 51136 Retention Time Verification Standard Price on request 79648 Acenaphthylene-d8 Price on request