N-(Azido-PEG3)-N-Fluorescein-PEG3-acid
This product is a multifunctional PEG linker containing an azide group, a fluorescein dye, and a terminal carboxylic acid connected by PEG3 spacers. It specifically enables copper-catalyzed or strain-promoted click chemistry, fluorescence imaging, and amide coupling in one compact scaffold.
Key Features and Benefits
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Azide Group: Reacts with alkynes via CuAAC or SPAAC click chemistry. 
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Fluorescein Dye: Provides bright green fluorescence for imaging and detection. 
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Carboxylic Acid: Couples efficiently with amines to form stable amide bonds. 
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PEG3 Spacers: Improve solubility and reduce steric hindrance. 
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High Purity: Ensures reproducibility in fluorescence and bioconjugation workflows. 
Applications
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Fluorescence Imaging: Labels biomolecules for microscopy, flow cytometry, and diagnostics. 
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Bioconjugation: Links azide- and amine-modified biomolecules. 
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Probe Development: Builds multifunctional fluorescent probes with orthogonal reactivity. 
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Material Science: Functionalizes polymers and nanoparticles with fluorescence and click handles. 
Storage and Handling
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Storage: Keep at –20 °C in a sealed, light- and moisture-protected container. 
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Handling: Use anhydrous solvents such as DMF or DMSO; avoid prolonged exposure to light. 
This product integrates click reactivity, fluorescent detection, and amide coupling in a PEG3 scaffold, specifically providing a powerful tool for multifunctional labeling and probe development.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
 
		 
		 
								 
								




