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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.
Are lyophilized / dry oligos stable when stored frozen?
For long term oligo storage, temperature is the most important factor to consider. For long term storage, whether oligos are dried down, or resuspended in non-DEPC treated water or TE buffer (10 mM Tris pH 8.0, 0.1 mM EDTA; such as IDTE), it's optimal to store them frozen, at –20°C.
For room temperature or 4°C storage, oligos that are resuspended in TE buffer are more stable than dry oligos. Oligos that are stored in water (non-DEPC treated) are the least stable. However, at 4°C oligos stored under all of these conditions are stable for at least 60 weeks.