14323-65-0 15930-18-4 1868-76-4 28535-03-7 368-39-8 Boron tetrafluoride triethyl oxonium EINECS 206-705-1 NSC 176023 Oxonium, triethyl-, tetrafluoroborate(1-) Triethoxonium fluoroborate Triethyloxonium borofluoride Triethyloxonium fluoborate Triethyloxonium fluoroborate Triethyloxonium tetrafluoroborate Triethyloxonium tetrafluoroborate(1-)