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Reagent Labeling Service

Reagent labeling services (also known as biomolecule labeling or conjugation services) are outsourced technical services provided by specialized professional companies to research institutions, pharmaceutical firms, and diagnostic companies. These services involve the precise covalent attachment of labels such as fluorophores, enzymes, biotin, and isotopes to biological reagents—including antibodies, proteins, peptides, nucleic acids, and small-molecule drugs. The core value of these services is to enable traceability, detection, quantification, or purification of target molecules, thereby eliminating the cumbersome, low-yield, and activity-loss risks associated with in-house labeling.