CAS 68915-31-1 appears in our catalog under these names: Sodium polyphosphate, 95%, Sodium Hexametaphosphate, SODIUM POLYPHOSPHATE, CRYSTALS, +200 ME&, SODIUM HEXAMETAPHOSPHATE, 65-70% P2O5 B&, Sodium hexametaphosphate, 65-70% P2O5 basis, 65-70% P2O5 basis. Offered by: Combi-blocks, TRC, Chemat, Biosynth, Sigma-Aldrich. Available pack sizes: 500g, 5g, 1kg, 25g, 100g, 10g, 1g, 250g.