CAS 56-85-9 appears in our catalog under these names: L-Glutamine, 99% , L-Glutamine, 98.5+%, Ultrapure, Thermo Scientific , L-Glutamine, Cell Culture Reag . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1000g, 50g, 250g, 100g, 500g, 1kg, 25g.