artistic illustration of DNA strands

Primers for sequencing cloned DNA, cDNA synthesis and other molecular biology applications

We offer a range of pre-designed oligos for a variety of applications. Random Hexamer and Oligo dT Primers are suitable for first-strand cDNA synthesis with a reverse transcriptase. Sequencing Primers are complementary to common cloning vectors elements and allow for sequencing of cloned DNA fragments. Exonuclease-Resistant Random Primer is a mixture of single-stranded random oligonucleotides used for highly efficient random priming of various DNA synthesis reactions.

Custom DNA oligonucleotides

Thermo Scientific Custom DNA HPLC-purified Oligonucleotides offer a range of modifications, synthesis scales and purity grades for your research and application requirements. Oligonucleotides are synthesized by solid phase synthesis using phosphoramidite chemistry and purified by reverse phase HPLC. This standard production method combined with our experienced production team and fully enforced ISO9001 certification enables us to consistently provide high-quality custom DNA oligos.


Molecular Biology Resource Library

Webinars, videos, articles, and selection guides

Molecular Biology Web Tools

Tools for primer analysis, reaction setup, biochemical conversions, and calculators