CAS 123-86-4 appears in our catalog under these names: n-Butyl acetate, HPLC Grade, 99.5+% , n-Butyl acetate, Semiconductor Grade, 99% min , n-Butyl acetate, 99+% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 250ml, 1L, *4x1L, 4L, 2500ml, 500ml.