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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.

Which Biotin modification should I select?

IDT offers several different options for Biotin modifications. For most applications, you will want either standard Biotin, which has a C6 spacer arm, or Biotin-TEG, which has an extended 15 atom tetra-ethyleneglycol spacer arm. The additional spacer arm length reduces steric hindrance when the bioin-modified oligo is to be attached to a solid surface, such as a streptavidin bead.

Read about our biotin modifications and their recommended applications in the DECODED article, Which biotin modification to use?

Custom DNA & RNA

*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.