2,2’,3,4,4’,5’-Hexachlorobiphenyl (138) Back Catalog number: 66138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79974 Thiophanate methyl, 1000µg/ml in Acetonitrile, 1ml Price on request P838289 Propylparaben-d4, 1mg Price on request 94730 3,3’-Dimethoxybenzidine Price on request