2'-OMe-iBu-G CEP is a phosphoramidite containing 5' DMT and the nucleoside guanosine (G) with 2'-O-methyl protection, for use in oligonucleotide synthesis. Located in the ideal oligo position, 2'-O-methyl (OMe) oligo modifications display nuclease resistance, fewer off-target effects, and slightly increased hybridization affinities. These phosphoramidites are commonly used for oligos designed for antisense, siRNA, aptamer, or gRNA-based research. The 'standard grade' marking denotes a baseline level of purity verified with analytical methods, and proven to be suitable for most oligo synthesis requirements. This product is supplied in a 20-mL amber bottle with a serum vial neck style, which is compatible with most Applied Biosystems synthesizers and AKTA synthesizers.
Features: • Full chemical name—5'-O-(4,4'-Dimethoxytrityl)-N2-isobutyryl-2'-O-methyl-guanosine-3'-O-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite • Molecular formula—C45H56N7O9P • Base—G • Base Protection—iBu • Formula weight—869.9 g/mol • CAS number—150780-67-9 • HPLC purity—≥98.0%; Sum of non-primary peaks 140-152ppm: ≤0.5% • 31P NMR purity—≥98.0%