L 1380 (OTTO) Lead fluoborate Cas 13814-96-5 - used in tin-lead electroplating. L 1380 (OTTO) Lead fluoborate Cas 13814-96-5 - used as a catalyst involved in calixarene formation through hydrogen-bonded dimmers and in the preparation of linear polyesters. It is involved in the development and optimization of a bipolar lead-boron tetrafluoride accumulator.