CAS 27619-97-2 appears in our catalog under these names: 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooctane-1-sulfonic acid, 97%, 1H,1H,2H,2H-Perfluorooctanesulfonic acid, 95%, 1H,1H,2H,2H-Perfluorooctane sulfonic acid 100 µg/mL in Methanol, 1H,1H,2H,2H-Perfluorooctanesulfonic acid, 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooctane-1-sulphonic Acid, >95% (HPLC). Offered by: Fluorochem, Combi-blocks, Dr. Ehrenstorfer, TRC, GLPBio. Available pack sizes: 5g, 25g, 1g, 250mg, 1ml, 10mg, 100mg, 25mg.