BDP FL-PEG4-amine | CAS 2183473-14-3

BDP FL-PEG4-amine is a BODIPY-based fluorescent labeling reagent bearing a terminal primary amine for convenient conjugation to biomolecules and polymers. Its BODIPY core provides bright visible fluorescence, while the PEG4 spacer supports improved solubility and reduces steric constraints during bioconjugation. In routine fluorescence workflows, this amine-functional dye is used to introduce a stable, trackable fluorescent handle for imaging, labeling, and assay development where an amine-bearing fluorophore is required.

1. Protein And Peptide Labeling

BDP FL-PEG4-amine is commonly used by protein engineering and chemical biology groups to generate fluorescently labeled proteins and peptides for microscopy and fluorescence-based assays. The terminal amine enables straightforward coupling strategies to biomolecular scaffolds that require an amine-containing dye, supporting labeling of purified proteins, affinity reagents, and peptide probes used in binding studies. PEG spacing helps maintain labeling efficiency while supporting aqueous handling during conjugate preparation and downstream imaging.

2. Antibody And Affinity Reagent Labeling

BDP FL-PEG4-amine supports fluorescent tagging of antibodies and other affinity reagents used for targeted detection in research immunoassays and imaging experiments. Researchers typically incorporate the dye into antibody conjugates to visualize binding to immobilized targets or to track reagent distribution in cell and tissue imaging workflows. The amine functionality provides a practical fluorescent handle for preparing conjugates that can be used in fluorescence microscopy and fluorescence readout platforms where a robust visible fluorophore is preferred.

3. Polymer aND Surface Functionalization

BDP FL-PEG4-amine is used in biomaterials and surface chemistry workflows to introduce fluorescent labeling into PEG-containing polymers, coatings, and functionalized materials. Materials scientists often incorporate the dye into polymer backbones or attach it to surfaces to create traceable materials for studying transport, adhesion, and localization in engineered systems. The PEG4 spacer helps maintain dispersion in aqueous formulations and supports consistent fluorescence reporting from labeled materials during characterization and imaging.

4. Fluorescent Tracer Preparation

BDP FL-PEG4-amine is frequently employed to prepare fluorescent tracers for labeling and tracking macromolecules in analytical and imaging studies. In research settings, the amine-bearing dye is used to generate fluorescent conjugates used to follow distribution, mixing, and uptake in experimental systems, including flow-based and microscopy-based readouts. Its BODIPY fluorescence supports reliable visualization of labeled constructs across common fluorescence instrumentation used in chemical biology and materials research.