2,2’,5,5’-Tetrachlorobiphenyl (52) Back Catalog number: 66052 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79011 4,4’-Dichlorobiphenyl Price on request 8484.15-50MG Metoprolol (free base),neat,neat,50mg, Price on request 674502 Topramezone, 10.0 µg/ml, Acetonitrile, 10ml Price on request