Ald-Ph-PEG2-NH-Boc

• CAT Number: I015841
• CAS Number: 1807503-90-7
• Molecular Formula: C19H28N2O6
• Molecular Weight: 380.44
• Purity: ≥95%
• Synonyms: tert-butyl N-[2-[2-[2-[(4-formylbenzoyl)amino]ethoxy]ethoxy]ethyl]carbamate
• InChI: InChI=1S/C19H28N2O6/c1-19(2,3)27-18(24)21-9-11-26-13-12-25-10-8-20-17(23)16-6-4-15(14-22)5-7-16/h4-7,14H,8-13H2,1-3H3,(H,20,23)(H,21,24)
• InChIKey: MSCITXKKGMUNOD-UHFFFAOYSA-N
• SMILES: CC(C)(C)OC(=O)NCCOCCOCCNC(=O)C1=CC=C(C=C1)C=O

Ald-Ph-PEG2-NH-Boc（Cat No.:I015841）is a heterobifunctional PEG linker featuring an aldehyde-functionalized phenyl group at one end and a Boc-protected amine at the other, connected by a short PEG₂ spacer. The aldehyde moiety enables efficient oxime or hydrazone ligation with aminooxy or hydrazide groups, allowing site-specific and stable conjugation. The Boc-protected amine can be selectively deprotected to yield a reactive primary amine for further coupling. The PEG spacer improves solubility and reduces steric hindrance, making this linker highly useful in bioconjugation, drug discovery, and materials chemistry applications.