Mal-amido-PEG12-acid

• CAT Number: I015717
• CAS Number: 2378428-27-2
• Molecular Formula: C34H60N2O17
• Molecular Weight: 768.84
• Purity: ≥95%
• Synonyms: 3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[3-(2,5-dioxopyrrol-1-yl)propanoylamino]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
• InChI: InChI=1S/C34H60N2O17/c37-31(3-6-36-32(38)1-2-33(36)39)35-5-8-43-10-12-45-14-16-47-18-20-49-22-24-51-26-28-53-30-29-52-27-25-50-23-21-48-19-17-46-15-13-44-11-9-42-7-4-34(40)41/h1-2H,3-30H2,(H,35,37)(H,40,41)
• InChIKey: IKPIYLUYRFENAW-UHFFFAOYSA-N
• SMILES: C1=CC(=O)N(C1=O)CCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O

Mal-amido-PEG12-acid（Cat No.:I015717）is a heterobifunctional polyethylene glycol linker featuring a terminal maleimide group and a free carboxylic acid. The maleimide enables site-specific conjugation with thiol groups, while the carboxyl group offers versatile activation or further derivatization through carbodiimide chemistry. The PEG12 spacer imparts hydrophilicity, flexibility, and extended reach, reducing steric hindrance and enhancing solubility in aqueous and organic systems. This reagent is widely employed in bioconjugation, drug delivery, protein modification, and advanced material development, providing controlled spacing and reliable performance in both chemical and biological applications.