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Sodium Meta Periodate
Sodium periodate can be used in solution to open saccharide rings between vicinal diols leaving two aldehyde groups. This process is often used in labeling saccharides with fluorescent molecules or other tags such as biotin. Because the process requires vicinal diols, periodate oxidation is often used to selectively label RNA (ribose has vicinal diols) instead of DNA as deoxyribose does not have vicinal diols.
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