CAS 29703-01-3 appears in our catalog under these names: Cesium Bicarbonate, Cesium hydrogen carbonate/ 99%, Cesium hydrogen carbonate/ 99.99%, Cesium hydrogencarbonate,99·9%, Cesium hydrogen carbonate, 99.99% (metals basis) . Offered by: TRC, Chemat, GLPBio, Thermo Scientific (Alfa Aesar), Ambeed. Available pack sizes: 100mg, 500mg, 50mg, 25g, 100g, 10g, 500g, 5g.