Ald-benzyl-PEG5-CH2 tBu-ester is a high-purity PEG linker with an aldehyde specifically for oxime/hydrazone ligation and a t-butyl ester–protected acid for orthogonal conjugation. The PEG5 spacer enhances solubility and flexibility for especially efficient bioconjugation.
Polyethylene Glycol PEG Linkers > Aldehyde PEG > Ald-benzyl-PEG-CH2 tBu-ester
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