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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 are the optimum storage conditions for Alt-R HDR Donor Blocks?

IDT ships Alt-R™ HDR Donor Blocks dry at ambient temperatures. While dry, we recommend long term storage at -20°C. After resuspending in a high quality, molecular-grade water or buffer, pH 7.5-8.0, the Alt-R HDR Donor Blocks should be stored at 4°C for short term, or –20°C for long-term storage. We do not recommend diluting Alt-R HDR Donor Blocks to low concentrations (<10 ng/µL) due to yield loss resulting from adherence of the material to the plastic tube.



*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.