CAS 67969-82-8 appears in our catalog under these names: Tetrafluoroboric acid-diethyl ether complex, 50-57% HBF4 , TETRAFLUOROBORIC ACID-DIETHYL ETHER COM&, TETRAFLUOROBORIC ACID-DIETHYL ETHER COMP. Offered by: Thermo Scientific (Alfa Aesar), Sigma-Aldrich. Available pack sizes: 25ml, 250ml, 100ML, 400ML.