Cy3 dic18 | CAS 22366-93-4

Cy3 dic18 is a cyanine-based lipophilic fluorescent dye designed for membrane-associated staining and fluorescence labeling in microscopy and fluorescence workflows. Its hydrophobic character supports incorporation into lipid environments, enabling visualization of membrane structures and membrane dynamics with Cy3-compatible excitation/emission. In practice, Cy3 dic18 is used as a robust fluorescent tracer for cell biology and biomaterials research where lipid labeling is required.

1. Membrane Labeling Microscopy

Cy3 dic18 is commonly used as a fluorescent membrane tracer for imaging cell membranes and membrane-associated structures by fluorescence microscopy. Researchers incorporate the dye into lipid-containing samples to generate bright membrane-associated signal with Cy3 spectral compatibility, supporting studies of membrane morphology, membrane trafficking readouts, and qualitative tracking of lipid-rich compartments. This labeling approach is frequently adopted in cell imaging workflows where a lipophilic dye provides strong association with membranes without requiring protein-specific targeting.

2. Lipid Incorporation Tracing

Cy3 dic18 is applied as a lipophilic fluorescent probe for tracing lipid mixing and lipid incorporation in model membrane systems and lipid-containing biomaterials. In membrane mimic studies, the dye is used to monitor how fluorescent lipids distribute across vesicles, supported lipid layers, or other lipid assemblies, providing a convenient readout for membrane organization and transport-like behaviors. This makes Cy3 dic18 useful for researchers developing membrane-active materials, studying lipid exchange processes, and validating lipid coating or lipid-functionalized surface architectures.

3. Flow Cytometry Membrane Staining

Cy3 dic18 is used in flow cytometry as a membrane-associated fluorescence label to quantify relative membrane labeling intensity across cell populations. By staining cells with a lipophilic Cy3 dye, researchers can generate a fluorescence signal that reflects dye association with cellular lipid environments, supporting population-level comparisons in labeling experiments and membrane-related assay development. The Cy3 spectral window enables integration into standard flow cytometry instrument configurations that include appropriate filter sets for Cy3 emission.

4. Fluorescence-Based Bioassay Development

Cy3 dic18 supports fluorescence assay development where lipid-dependent processes or membrane interactions are monitored using a dye-based readout. In assay formats designed to report on membrane perturbation, membrane binding, or membrane-associated events, the dye provides a convenient fluorescent signal that can be monitored by plate readers or imaging systems configured for Cy3 detection. This application is especially common in chemical biology and biomaterials labs that need a practical membrane labeling reagent compatible with fluorescence measurement workflows.