CAS 109-66-0 appears in our catalog under these names: n-Pentane, Spectrophotometric Grade, 99+% min. , n-Pentane, Environmental Grade, 98+% , n-Pentane, capillary GC grade, 98+% , n-Pentane, anhydrous, 99.5+%, over molecular sieves, package, n-Pentane, 98% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1L, 4L , *4x1L, *4x4L , 250ml, 2.5L , 2500ml, 1000ml.