Cyanine7.5 azide

Cyanine7.5 azide is a cyanine-family near-infrared fluorescent dye equipped with an azide functional group for bioorthogonal click chemistry labeling. In conjugation workflows, the azide enables rapid attachment to alkyne-bearing biomolecules, linkers, and surfaces, producing fluorescent conjugates for imaging and quantitative fluorescence readouts. Its far-red spectral character supports low-background visualization in microscopy and fluorescence-based assays where red/NIR channels are preferred.

1. Biomolecule Labeling

Cyanine7.5 azide is used to generate fluorescently labeled proteins, peptides, and other biomolecules via azide-alkyne click conjugation with alkyne-tagged targets or labeling scaffolds. Researchers employ the resulting Cyanine7.5 conjugates in fluorescence imaging and binding studies where near-infrared detection helps separate signal from autofluorescence. This reagent format is also common in chemical biology workflows that require modular dye installation onto sensitive biomolecules while maintaining compatibility with downstream purification and assay handling.

2. Fluorescence Imaging Probes

Cyanine7.5 azide serves as a dye-building block for constructing imaging probes and multicomponent fluorescent reagents, including conjugates used in cellular and molecular microscopy experiments. By clicking the azide dye onto alkyne-functional probe backbones, investigators can tune labeling density and probe architecture while keeping the fluorescent reporter constant. The far-red emission profile is particularly useful for imaging configurations that collect red/NIR channels to improve contrast in complex biological samples.

3. Surface And Material Functionalization

Cyanine7.5 azide is applied in biomaterials and surface engineering to create fluorescently trackable coatings, nanoparticles, and polymer-modified materials through click attachment to alkyne-functional surfaces or carriers. Teams in materials science and industrial research use these Cyanine7.5-labeled materials to monitor surface coverage, track material localization, and support fluorescence-based characterization of engineered interfaces. The azide handle enables straightforward incorporation of the dye into functional materials without requiring dye redesign for each platform.

4. Fluorescence-Based Bioassays

Cyanine7.5 azide is used to prepare fluorescent conjugates for plate-based and cuvette-based fluorescence assays, including labeling reagents for binding assays and reporter conjugates in assay development. After click conjugation to alkyne-bearing assay components, the resulting near-infrared dye conjugates provide a consistent fluorescent reporter for signal readout on standard fluorescence instrumentation with appropriate far-red excitation/emission settings. This approach is frequently chosen when a modular labeling strategy is needed to standardize reagent performance across multiple assay formats.