2,2',3,3',4,4',5,6'-Octachlorobiphenyl (196) Back Catalog number: 63196 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66017 2,2',4-Trichlorobiphenyl (17) Price on request 679224 Tulobuterol hydrochloride, 50mg Price on request 79151 Benzidine Price on request