for the following products
2'-O-Methyl Cytidine (n-acetyl) CED Phosphoramidite | Dmt-2′o-methyl-rc(ac) phosphoramidite | N4-acetyl-5'-O-(4,4'-dimethoxytrityl)-2'-O-methyl-cytidine-3'-ce-phosphoramidite | N4-Acetyl-5'-O-DMT-2'-O-methylcytidine 3'-CE phosphoramidite and N-Acetyl-5'-o-(4,4-dimethoxytrityl)-2'-o-methylcytidine-3'-(2-cyanoethyl-N,N-diisopropyl)phosphoramidite