CAS 41464-39-5 appears in our catalog under these names: PCB No. 44, PCB No. 44 10 µg/mL in Isooctane, 2,2′,3,5′–Tetrachlorobiphenyl, 2,2',3,5'-Tetrachlorobiphenyl, PCB 44, ROTI®Star, 25 mg, glass. Offered by: Dr. Ehrenstorfer, GLPBio, Biosynth, Roth, HPC Standards. Available pack sizes: 25mg, 10ml, 1ml, 25ml, 50ml, 100ml, 1x5ml.