SPDP-PEG12-acid (CAS: 1334177-96-6) is a heterobifunctional PEGylation reagent with an SPDP group and a carboxyl (-COOH) group, designed for bioconjugation. Its PEG12 spacer enhances solubility and reduces steric hindrance, making it ideal for protein modification, antibody-drug conjugates, and nanoparticle functionalization.
Polyethylene Glycol PEG Linkers > Thiol PEG > SPDP-PEG-acid
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