m-PEG12 NHS Ester is a methoxy-capped PEG reagent with an NHS ester for amine coupling. The PEG12 spacer specifically provides extended length, improved solubility, and reduced steric hindrance, ideal for protein PEGylation, drug delivery, and surface modification.
Polyethylene Glycol PEG Linkers > M-PEG > M-PEG-NHS ester
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