Boc-Hydrazide Reagents

Boc-Hydrazide Reagents in multifunctional uniform PEG linkers are PEG-based molecules that contain a hydrazide (-NHNH₂) functional group protected with a Boc (tert-butyloxycarbonyl) group.

The Boc group temporarily blocks hydrazide reactivity, enabling controlled, stepwise synthesis until deprotection reveals the active hydrazide for conjugation with aldehydes or ketones via hydrazone bond formation. These reagents offer site-specific conjugation capability and are widely used in drug delivery, bioconjugation, and labeling applications where PEG enhances solubility, stability, and biocompatibility.