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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.

Do your oligos have an expiration date?

There are several factors that influence oligo stability, including the oligo composition and storage conditions. Due to this variability, we do not routinely provide an expiration date. Please contact Technical Support ( if you have questions regarding oligo stability and storage.

If you are using an oligo for a commercial use or as a molecular diagnostics product, please contact our Clinical and Commercial Accounts ( or Third Party Manufacturing ( representative. These groups can provide a letter containing expiration dates.

IDT can provide custom labels that include an oligo expiration date specified by the customer. Please contact for more information regarding the quotation process for this service.

*RUO—For research use only. Not for use in diagnostic procedures. Unless otherwise agreed to in writing, IDT does not intend for these products to be used in clinical applications and does not warrant their fitness or suitability for any clinical diagnostic use. Purchaser is solely responsible for all decisions regarding the use of these products and any associated regulatory or legal obligations.