CAS 52663-63-5 appears in our catalog under these names: PCB No. 151, PCB No. 151 10 µg/mL in Isooctane, PCB 151, ROTI®Star, 5 mg, glass, PCB 151, PCB 151, Concentration: 10.0 µg/ml Solvent: Isooctane. Offered by: Dr. Ehrenstorfer, Roth, HPC Standards. Available pack sizes: 5mg, 10ml, 1x5mg, 1x10ml.