CAS 7758-29-4 appears in our catalog under these names: Sodium Triphosphate, Sodium tripolyphosphate , Sodium tripolyphosphate, for analysis, Sodium tripolyphosphate, 85%, pure, tech., Sodium tripolyphosphate, 94.00%. Offered by: TRC, Thermo Scientific (Alfa Aesar), Biosynth, Thermo Scientific (Acros), Chemat. Available pack sizes: 10g, 1g, 5g, 500g, 2kg, 1kg, 25g, 100g.