CAS 38444-73-4 appears in our catalog under these names: PCB No. 19, 2,2',6-Trichlorobiphenyl, PCB 19, ROTI®Star, 10 mg, glass, PCB 19, Concentration: 100 µg/ml Solvent: Isooctane. Offered by: Dr. Ehrenstorfer, Biosynth, Roth, HPC Standards. Available pack sizes: 5mg, 25mg, 10mg, 50mg, 1x5ml.