CAS 14987-04-3 appears in our catalog under these names: Magnesium trisilicate, 95%, Magnesium trisilicate , Magnesium trisilicate, Magnesiumtrisilicat, Ph.Eur., USP, 100 g, plastic, Magnesiumtrisilicat, Ph.Eur., USP, 500 g, plastic. Offered by: Combi-blocks, Thermo Scientific (Alfa Aesar), Chemat, MedChemExpress, Roth. Available pack sizes: 5g, 100g, 25g, 250g, 1kg, 5kg, 250 g, 100 g.