LDS 950 | CAS 94492-46-3

LDS 950 is a long-wavelength fluorescent dye designed for strong fluorescence emission in the near-infrared region, making it useful as a bright tracer in optical detection workflows. Its labeling performance is commonly leveraged in fluorescence imaging and fluorescence-based quantification, where reduced background from autofluorescence can be advantageous. In practice, LDS 950 is typically used as a fluorescent tag for materials, polymers, and biological labeling experiments that benefit from far-red/near-infrared readout.

1. Fluorescent Imaging Tracing

LDS 950 is frequently used as a fluorescent tracer for imaging-based studies where far-red or near-infrared emission improves visualization against biological or material autofluorescence. Researchers employ LDS 950 to track the distribution of labeled species in microscopy and optical imaging workflows, including studies of transport, diffusion, and localization in complex sample matrices such as hydrogels, polymer films, and engineered biomaterials.

2. Polymer And Biomaterial Labeling

LDS 950 is commonly incorporated into polymer and biomaterial research to enable fluorescence tracking of material components during fabrication and downstream characterization. In biomaterials science workflows, LDS 950 is used to label polymer phases, blend constituents, or surface-associated fractions so that researchers can monitor morphology, mixing, and spatial organization by fluorescence microscopy or imaging systems equipped for long-wavelength detection.

3. Fluorescence-Based Quantification

LDS 950 is used in fluorescence assay development and analytical quantification where a long-wavelength dye provides a convenient optical handle for measuring labeled concentrations or signal changes. Many laboratory users apply LDS 950 in calibration and readout experiments that rely on plate readers, gel imaging systems, or optical detection instruments configured for far-red/near-infrared channels, supporting routine measurement of fluorescently labeled standards and probes.

4. Long-Wavelength FRET Pairing

LDS 950 can be used as a long-wavelength fluorescence component in FRET-oriented experimental designs where spectral separation and compatibility with long-wavelength acceptor/detector channels are important. Fluorescence researchers incorporate LDS 950 into donor/acceptor labeling schemes for distance-dependent readouts in labeled biomolecule constructs and materials-based assemblies, using long-wavelength emission to reduce interference from background fluorescence in complex samples.