CAS 7664-93-9 appears in our catalog under these names: Sulfuric acid, Environmental Grade, 93-98% , Sulfuric acid, 99.9999% (metals basis), 92% min , Sulfuric acid, ACS, 95.0-98.0% , Sulfuric acid, 5% v/v aq. soln. , Sulfuric acid, 6.0N Standardized Solution . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 500ml, 2.5L, 10ml, 100ml, 1kg, *4x1kg, 1L, 20L.