The Raptor ARC-18 is a sterically protected C18 ligand designed to endure low-pH mobile phases without sacrificing retention or peak quality. Ideal for high-throughput LC-MS/MS applications with large, multi-class analyte lists including cannabinoids, aflatoxins, and fat-soluble vitamins. USP L1, pore size: 90A, surface area: 100m2/gram, carbon load: 5%, non-endcapped. pH range: 1.0 - 8.0, maximum temperature: 80C, maximum pressure: 40 MPa/400 bar/ 5,800 psi. Similar phases: Kinetex XB-C18, Ascentis Express Peptide ES-C18, Poroshell 120 SB-C18, Cortecs C18.