N4-Benzoyl-5'-O- (4,4'-dimethoxytrityl) -2'-O- (2-methoxyethyl) -5-methylcytidine

These 2'-modified nucleosides are supplied with free amino and hydroxyl groups, making them ready for direct phosphorylation. They are key intermediates in oligonucleotide synthesis for research applications, including the development of antisense oligonucleotides and siRNAs for both in vitro and in vivo functional studies.