CAS 540-84-1 appears in our catalog under these names: 2,2,4-Trimethylpentane, ACS, 99+% , 2,2,4-Trimethylpentane, Environmental Grade, 99.5+% , Lead in Isooctane standard solution, Specpure|r, 0µg/g(0.000, 2,2,4-Trimethylpentane, HPLC Grade, 99.7+% , 2,2,4-Trimethylpentane, 99% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 500ml, 1L, 4L, *4x1L, 100g, 2500ml.