Amino-PEG-OH

The H₂N-PEGn-OH series, exemplified by H₂N-PEG5-OH, is a heterobifunctional PEG derivative containing both an amine group and a hydroxyl terminus. This structure enables sequential conjugation strategies—such as forming amide bonds with carboxylates followed by hydroxyl-specific modifications—for constructing complex biomolecular assemblies. Key advantages of this series include orthogonal reactivity for flexible molecular design, tunable PEG spacer length (n), and significantly improved solubility for hydrophobic compounds.