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I have ordered a 5 thiol C6 modification on my custom oligo, what form does that come in and how do I create a free thiol?

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I have ordered a 5 thiol C6 modification on my custom oligo, what form does that come in and how do I create a free thiol?

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Your oligo will be shipped a 5′ disulfide with the form HO-C6-S-S-C6-oligo. To reduce it to a free thiol use 100 mM DTT and 0.2 M phosphate buffer pH 8.5 at room temperature for 30 minutes. The product can then be purified with a G-25 column.

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