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 9968.16 2-n-Propylacridine, Please inquire, Solvent-, Unit , # of units-, Cas.no. Price on request 681686 Pentachlorophenol, 100 µg/ml, Methanol, 1ml Price on request 79027 Benzo(a)pyrene Price on request