Ald-benzyl-PEG4-CH2 tBu-ester is a high-purity PEG linker with an aldehyde-benzyl group for oxime or hydrazone ligation and a t-butyl ester-protected acid specifically for controlled activation.
Polyethylene Glycol PEG Linkers > Aldehyde PEG > Ald-benzyl-PEG-CH2 tBu-ester
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