2,3',4',5-Tetrachlorobiphenyl (70) Back Catalog number: 66070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97297 Deuterated PAH Std., 2000µg/ml in MeChl, 1ml Price on request 676760 Chlorsulfuron, 100 µg/ml, Acetonitrile, 1ml Price on request 79403 Aroclor 1221 Price on request