*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>PEG (Alkyne)2</strong> denotes a bifunctional polyethylene glycol derivative terminated with alkyne groups, widely utilized in bioconjugation. Synthesized via etherification of PEG diols followed by propargylation, this reagent facilitates copper-catalyzed azide-alkyne cycloaddition (CuAAC). Its generic formula is C<sub>n</sub>H<sub>2n+2</sub>O<sub>m</sub>(C≡CH)<sub>2</sub>, though specific molecular weights vary by grade.</p>
<h3>Application</h3>
<ul>
<li><strong>Drug Delivery:</strong> Conjugating targeting ligands to nanoparticles for enhanced cellular uptake.</li>
<li><strong>Proteomics:</strong> Labeling biomolecules for mass spectrometry analysis via click chemistry.</li>
<li><strong>Material Science:</strong> Functionalizing polymer surfaces to improve biocompatibility.</li>
</ul>
<h3>Precautions</h3>
<p>Store under inert atmosphere at 2-8°C to prevent oxidation or premature polymerization. Avoid direct skin contact and ensure adequate ventilation during handling due to potential irritancy. Not intended for direct human injection without rigorous purification and regulatory approval.</p>