NuPAGE® Novex Tris-Acetate Gels provide excellent separation of large molecular weight proteins when used with NuPAGE® Tris-Acetate SDS Running Buffer. NuPAGE® Novex Tris-Acetate gels can also be run with Tris-Glycine Native Running Buffer to resolve native proteins more effectively than the Tris-Glycine gel system. Formulation: NuPAGE® Novex Tris-Acetate gels are made with high-purity, strictly quality-controlled reagents: Tris base, acetic acid, acrylamide, bis-acrylamide, TEMED, APS, and highly purified water. They do not contain SDS.