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Biotinylation reagent with aminocaproic spacer for aldehyde groups (e.g., periodate-oxidized sugars) and carboxylic acids. Typically used for coupling to glycoproteins through the carbohydrate by hydrazone bond formation.

MBS and its water-soluble analog Sulfo-MBS are heterobifunctional crosslinkers that contain N-hydroxysuccinimide (NHS) ester and maleimide groups that allow covalent conjugation of amine- and sulfhydryl-containing molecules. NHS esters react with primary