2,2',4,5'-Tetrachlorobiphenyl (49) Back Catalog number: 66049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66174 2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Price on request 92533 Fluoranthene Price on request 3716.31-10UG 3 alpha,17 alpha(H),21ß(H)-3-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. Price on request