2,3,3',4'-Tetrachlorobiphenyl (56) Back Catalog number: 63056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended N-13618-50MG trans-Heptachlor epoxide, 50mg Price on request 680513 Neo Spiramycin I, 100 µg/ml, Methanol, 1ml Price on request L12625000AL Difethialone, 10 µg/mL in Acetonitrile, 10mL Price on request