UnyLinker 12 is a universal linker that can be used to synthesize oligoribonucleotides[1].
References
[1] Vasulinga T. Ravikumar, et al. UnyLinker: An Efficient and Scaleable Synthesis of Oligonucleotides Utilizing a Universal Linker Molecule: A Novel Approach To Enhance the Purity of Drugs. Org. Process Res. Dev. 2008, 12, 3, 399-410.