mPEG-SS-Hydrazine (cleavable)

mPEG-SS-Hydrazine contains a monomethoxy polyethylene glycol chain linked to a hydrazine terminus via a disulfide bond. The hydrazine group in mPEG-SS-Hydrazine enables specific conjugation with aldehydes or ketones to form hydrazone bonds. mPEG-SS-Hydrazine is particularly suitable for constructing dual-responsive drug delivery systems, where the disulfide bond provides redox sensitivity and the hydrazone bond offers pH-dependent release.