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Frequently asked questions

Our Scientific Applications Support team has assembled a list of frequently asked questions to help you find answers quickly. Filter using one or more categories to focus on specific topics, or use the search bar to perform a text search.

What is the fidelity of your Ultramer® Oligonucleotide synthesis?

Standard DNA oligos have a coupling efficiency of 99.2%. Ultramer oligos have a 99.5% coupling effiency. This increase results in higher fidelity synthesis. With both syntheses, purification may be recommended for longer oligos based on your specific application. For further information regarding Ultramer oligos, please see our Ultramer Oligos Catalog Page at

Custom DNA & RNA