m-PEG-Butyraldehyde, MW 2,000 is an aldhehyde functionalized polyPEG. Butyraldehyde reacts with hydrazide to form a stable hydrazone linkage or with alkoxyamines to form a stable oxime bond. The hydrophilic PEG chain increases the water solubility of the compound in aqueous media. Reagent grade, for research purpose.
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