CAS 34883-43-7 appears in our catalog under these names: PCB No. 8, PCB No. 8 10 µg/mL in Isooctane, 2,4'–Dichlorobiphenyl, 42731, 2,4'-Dichlorobiphenyl (IUPAC No., PCB 8, ROTI®Star, 25 mg, glass. Offered by: Dr. Ehrenstorfer, GLPBio, Sigma-Aldrich, Roth, HPC Standards. Available pack sizes: 25mg, 10ml, 1ml, 1x5ml.