Ald-Ph-PEG6-acid

• CAT Number: I016358
• CAS Number: 2055013-55-1
• Molecular Formula: C23H35NO10
• Molecular Weight: 485.52
• Purity: ≥95%
• Synonyms: 3-[2-[2-[2-[2-[2-[2-[(4-formylbenzoyl)amino]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
• InChI: InChI=1S/C23H35NO10/c25-19-20-1-3-21(4-2-20)23(28)24-6-8-30-10-12-32-14-16-34-18-17-33-15-13-31-11-9-29-7-5-22(26)27/h1-4,19H,5-18H2,(H,24,28)(H,26,27)
• InChIKey: RNJVHKOJSNIKOU-UHFFFAOYSA-N
• SMILES: C1=CC(=CC=C1C=O)C(=O)NCCOCCOCCOCCOCCOCCOCCC(=O)O

Ald-Ph-PEG6-acid(CAT: I016358) is a heterobifunctional polyethylene glycol (PEG) linker bearing an aldehyde-substituted phenyl group at one terminus and a carboxylic acid at the other, connected through a six-unit PEG chain. The aldehyde group enables site-specific conjugation with amines or hydrazides via reversible imine or hydrazone bond formation, making it useful for biomolecule labeling and reversible linkage strategies. The terminal carboxyl group provides an additional functional handle for coupling with primary amines to form stable amide bonds. The PEG6 spacer imparts flexibility, hydrophilicity, and solubility, while reducing steric hindrance. This reagent is valuable in bioconjugation, drug delivery, and materials science applications requiring dual orthogonal reactivity.