2. Signaling Pathways
  3. Others
  4. Fluorescent Dye

Fluorescent Dye

Fluorescence is a phenomenon of photoluminescence in luminescence. When an atom is irradiated by light, some electrons around the nucleus jump from their original orbitals to higher energy orbitals under the influence of light energy, i.e., from the ground state to the first or second excited single-line state, etc. Due to the instability of the first or second excited singlet state, the electron returns from the excited singlet state to the ground state accompanied by released energy, resulting in fluorescence.

Fluorescent dyes can be covalently bound or physically adsorbed in the structure of the substance. The fluorescence properties allow for the characterization, localization and quantitative analysis of the labeled object. Fluorescent dyes have shown great potential for the detection of proteins, nucleic acids, cells, and immunoassays, attributed to the advantages in non-radioactive contamination, simple experimental operation and easy observation.

Fluorescent dyes have penetrated many fields such as pharmacology, physiology, environmental science, and information science, as well as functional studies of proteins and drug screening.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-D2755
    BP Light 650 carboxylic acid
    BP Light 650 carboxylic acid is an vibrant far-red fluorochrome with comparable or improved performance over other dyes, including BP Fluor 647 and Cy5 dye, for fluorescent applications. It is used to label antibodies and other proteins as molecular probes for cellular imaging and other fluorescence detection methods application.
    BP Light 650 carboxylic acid
  • HY-D1895
    3,5-DiBr-PAESA
    3,5-DiBr-PAESA is a supersensitive chelating agent that can be used for silver (I) determination in water in the case of absence of other interfering ions. 3,5-DiBr-PAESA can also be used for copper (II) determination.
    3,5-DiBr-PAESA
  • HY-W140535
    Tetrasodium,4-(1,10-phenanthrolin-4-yl)benzenesulfonate,ruthenium((II))
    Tetrasodium,4-(1,10-phenanthrolin-4-yl)benzenesulfonate,ruthenium((II)) is a luminescent indicator dye.
    Tetrasodium,4-(1,10-phenanthrolin-4-yl)benzenesulfonate,ruthenium((II))
  • HY-D2774
    TechnoDye 498/505
    BP Fluor 488 Alkyne is a fluorophore. Its absorption and emission spectra are similar to fluorescein, but it is fluorescent in acidic media, and it is much more stable against photobleaching and oxidation.
    TechnoDye 498/505
  • HY-18675
    IQ-R
    IQ-R is a novel hypoxia-sensitive fluorescent probe, consisting of an indolequinone unit and a rhodol fluorophore.
    IQ-R
  • HY-D0686
    C.I. Pigment red 221
    C.I. Pigment red 221 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 221
  • HY-D0391
    C.I Acid orange 8
    C.I Acid orange 8 is an acidic orange dye that photochemically decolorizes during a UV/hydrogen peroxide process.
    C.I Acid orange 8
  • HY-D2856
    FITC-PEG-Br (MW 1000)
    FITC-PEG-Br (MW 1000) is a fluorescent dye composed of FITC (HY-66019), PEG and chlorine (-Cl). The chlorine group is an electrophilic active group that can be used for nucleophilic substitution reactions and facilitate subsequent chemical modification (Ex/Em = 488/525 nm).
    FITC-PEG-Br (MW 1000)
  • HY-D1343
    DMNPE-caged D-luciferin
    DMNPE-caged D-luciferin is a heterocyclic luminescent compound that is a natural ligand for luciferase, an enzyme used to detect cell activity. Its reaction requires ATP and emits yellow-green light with a peak wavelength of about 530 nm. The luciferin in the DMNPE cage easily crosses the cell membrane.
    DMNPE-caged D-luciferin
  • HY-D1350
    5-ROX-alkyne
    5-ROX-alkyne is a rhodamine dye that labels DNA fragments. It enables visualization of the results of capillary electrophoresis genotyping experiments and gel shift experiments.
    5-ROX-alkyne
  • HY-59021
    2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole
    2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole is a laser dyes with high photoluminescence (PL) quantum efficiency.
    2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole
  • HY-169740
    L-Luciferin
    L-Luciferin is a competitive inhibitor of firefly Luciferin and can be used as an alternative substrate for light production, increasing the concentration of the enzyme or L-luciferin reduces the amount of light produced compared to D-Luciferin catalysis.
    L-Luciferin
  • HY-171458
    U-104067
    U-104067 can be used as a molecular probe to observe and to quantitate a variety of physical phenomena, such as transfer into lipid membranes, partitioning between surface phases, and partitioning between lipid carriers and target membranes. U-104067 is a sensitive reporter of the tilt/ripple phase transition, monitored by its fluorescence anisotropy and quantum yield changes.
    U-104067
  • HY-175086
    PtdIns-(3,4,5)-P3-fluorescein triethylammonium
    PtdIns-(3,4,5)-P3 is a second messenger. PtdIns-(3,4,5)-P3-fluorescein triethylammonium is a fluorescent probe that can detect any protein that has a high-affinity binding interaction with inositol-(3,4,5)-triphosphate phospholipids.
    PtdIns-(3,4,5)-P3-fluorescein triethylammonium
  • HY-D2387
    Sulfo CY3.5 hydrazide
    Sulfo CY3.5 hydrazide is sulfonated Cy3.5 with good water solubility. λex=591 nm, λem=604 nm.
    Sulfo CY3.5 hydrazide
  • HY-D0440
    C.I. Direct green 28
    C.I. Direct green 28 is a good dyeing agent for cotton fabrics.
    C.I. Direct green 28
  • HY-D0494
    C.I. Acid yellow 151
    C.I. Acid yellow 151 is an acidic yellow dye that can be adsorbed and removed by bentone.
    C.I. Acid yellow 151
  • HY-D2460
    Dextran-CY5.5
    Dextran-CY5.5 is a CY5.5 (HY-D0924) labeled Dextran (HY-112624) conjugate. CY5.5 is a Cyanine dye (The excitation wavelength is usually 673nm and the emission wavelength is 707nm) that can be used for the labeling of proteins, antibodies and small molecular compounds. Dextran has an inhibitory effect on thrombocyte aggregation and coagulation factors and is used as a plasma volume expander.
    Dextran-CY5.5
  • HY-D2665
    Cy5.5 HA MA (MW 5000)
    Cy5.5 HA MA (MW 5000) is a hyaluronic acid methacrylate labeled with CY5.5 (HY-D0924). Cy5.5 HA MA (MW 5000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 680/710 nm).
    Cy5.5 HA MA (MW 5000)
  • HY-D0559
    C.I. Disperse blue 284
    C.I. Disperse blue 284 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
    C.I. Disperse blue 284
Cat. No. Product Name / Synonyms Application Reactivity