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<h3>Overview</h3>
<p><strong>MPEG20K Succinimidyl Carboxymethyl Ester</strong> is a Y-shaped PEGylation reagent designed for bioconjugation. Its core process involves activating carboxyl groups with NHS esters to react with primary amines. The molecular formula is typically C<sub>106</sub>H<sub>211</sub>NO<sub>47</sub> (approximate). CAS No: 198538-89-5.</p>
<h3>Application</h3>
<ul>
<li><strong>Therapeutics:</strong> Conjugating proteins and peptides to enhance serum half-life.</li>
<li><strong>Diagnostics:</strong> Labeling antibodies for immunoassays and imaging probes.</li>
<li><strong>Drug Delivery:</strong> Constructing PEG-drug conjugates for targeted release systems.</li>
</ul>
<h3>Precautions</h3>
<p>Store at -20°C under inert atmosphere. Avoid moisture to prevent hydrolysis of the NHS ester. Handle with standard PPE; not for direct clinical injection without formulation.</p>