CAS 77-92-9 appears in our catalog under these names: Citric acid, 99+% , Citric acid, anhydrous, ACS, 99.5+% , Citric acid, anhydrous, 99.5-100.5% (dry basis), Thermo Scie, Citric acid, Electrophoresis G . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1000g, 5000g, 250g, 100g, 500g, 2kg, 1kg.