CAS 67-64-1 appears in our catalog under these names: Acetone, Spectrophotometric Grade, 99.5+% , Acetone, Semiconductor Grade, 99.5% , Acetone, HPLC Grade, 99.5+% , Acetone, ACS, 99.5+% , Acetone, Environmental Grade, 99.5+% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1L, *4x1L, 10ml, 500ml, 4L, *4x4L, 2500ml, 1000ml.