CAS 52712-05-7 appears in our catalog under these names: PCB No. 185, PCB No. 185 10 µg/mL in Isooctane, PCB 185, ROTI®Star, 5 mg, glass, PCB 185, Concentration: 100 µg/ml Solvent: Isooctane. Offered by: Dr. Ehrenstorfer, Roth, HPC Standards. Available pack sizes: 10mg, 10ml, 5mg, 1x5ml.