Mal-​PEG4-​NHS ester

• CAT Number: I017856
• CAS Number: 1325208-25-0
• Molecular Formula: C₁₉H₂₆N₂O₁₀
• Molecular Weight: 442.42
• Purity: ≥95%
• Target: ADC Linker
• Storage: 2-8°C
• IUPAC Name: (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-(2,5-dioxopyrrol-1-yl)ethoxy]ethoxy]ethoxy]ethoxy]propanoate
• InChI: InChI=1S/C19H26N2O10/c22-15-1-2-16(23)20(15)6-8-28-10-12-30-14-13-29-11-9-27-7-5-19(26)31-21-17(24)3-4-18(21)25/h1-2H,3-14H2
• InChIKey: TUPOSLKVPPFQGR-UHFFFAOYSA-N
• SMILES: C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCN2C(=O)C=CC2=O

Mal-PEG4-NHS Ester(CAT: I017856) is a bifunctional crosslinker widely used in bioconjugation and drug delivery research. This compound features a maleimide group that reacts selectively with thiol groups and an N-hydroxysuccinimide (NHS) ester that targets primary amines, enabling efficient conjugation of proteins, peptides, and other biomolecules. The PEG4 spacer provides enhanced solubility, flexibility, and reduced steric hindrance, ensuring stable and efficient coupling reactions. Mal-PEG4-NHS Ester is ideal for developing antibody-drug conjugates (ADCs), biomolecular probes, and nanocarriers. With high purity and reliable reactivity, it is an essential tool for advanced research in biochemistry, molecular biology, and drug development.