2. Signaling Pathways
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  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-D0558
    Disperse blue 165
    Disperse blue 165 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.
    Disperse blue 165
  • HY-D2533
    Cy5-PEG-N3 (MW 2000)
    Cy5-PEG-N3 (MW 2000) is a Cy5 (HY-D0821)-azide fluorescent dye used to label for protein and nucleic acid. Cy5-PEG-N3 (MW 2000) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Cy5-PEG-N3 (MW 2000)
  • HY-D0540
    Direct orange 118
    Direct orange 118 is a good dyeing agent for cotton fabrics.
    Direct orange 118
  • HY-W440914A
    DSPE-PEG-FITC (MW 400)
    DSPE-PEG-FITC (MW 400) is an amphiphile PEG polymer which has unsaturated lipid tails. DSPE-PEG-FITC (MW 400) can form micelles in an aqueous solution and can be used to prepare liposome/nano particles for drug nanocarriers.
    DSPE-PEG-FITC (MW 400)
  • HY-D2628
    Cy3 HA (MW 500000)
    Cy3 HA (MW 500000) is a hyaluronic acid labeled with CY3 (HY-D0822). Cy3 HA (MW 500000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 550/570 nm).
    Cy3 HA (MW 500000)
  • HY-D2851B
    FITC-PEG-CHOL (MW 5000)
    FITC-PEG-CHOL (MW 5000) is a fluorescent dye composed of FITC (HY-66019), PEG and cholesterol. FITC-PEG-CHOL (MW 5000) is widely used in cell membrane-related studies, liposome and nanoparticle modification, and biomolecule labeling (Ex/Em = 488/525 nm).
    FITC-PEG-CHOL (MW 5000)
  • HY-D0406
    C.I. Basic yellow 37
    C.I. Basic yellow 37 is an alkaline dye that can be removed from aqueous solutions in intermittent adsorption systems using tree ferns as biosorbents.
    C.I. Basic yellow 37
  • HY-D0669
    Reactive orange 4
    Reactive orange 4 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive orange 4
  • HY-123696
    CDy9
    CDy9 is a highly selective fluorescent probe. CDy9 can be used to detect mouse embryonic stem cells. ( λ exc. / λ em.：563 nm/578 nm).
    CDy9
  • HY-D2627
    Cy3 HA (MW 200000)
    Cy3 HA (MW 200000) is a hyaluronic acid labeled with CY3 (HY-D0822). Cy3 HA (MW 200000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 550/570 nm).
    Cy3 HA (MW 200000)
  • HY-D2647
    Cy5 HA (MW 500000)
    Cy5 HA (MW 500000) is a hyaluronic acid labeled with CY5 (HY-D0821). Cy5 HA (MW 500000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 633/670 nm).
    Cy5 HA (MW 500000)
  • HY-D2324
    EE-Flipper 33
    EE-Flipper 33 is a Flipper probe designed to evaluate the mechanism of early endocytosis. EE-Flipper has a pKa value of 10.6 and is capable of tracking approximately 70% of early endosomes (EE) in live cells. Furthermore, EE-Flipper 33 can also label the Golgi apparatus in live cells with an internal pH ranging from 6.0 to 6.7.
    EE-Flipper 33
  • HY-D0661
    Reactive red 45
    Reactive red 45 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive red 45
  • HY-D0419
    C.I. Direct green 26
    C.I. Direct green 26 is a good dyeing agent for cotton fabrics.
    C.I. Direct green 26
  • HY-D0566
    Pigment red 185
    Pigment Red 185 is a commonly used commercial dye for bulk coloring of plastics and synthetic fibers and for surface coatings such as paints and inks.
    Pigment red 185
  • HY-D2018
    ATTO 550 carboxy
    ATTO 550 carboxy is a carboxyl derivative of ATTO 550 with maximum excitation/emission wavelengths: 554/576 nm.
    ATTO 550 carboxy
  • HY-D0692
    Reactive red 124
    Reactive red 124 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive red 124
  • HY-D0464
    Pigment red 48:1
    Pigment red 48:1 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.
    Pigment red 48:1
  • HY-D2770
    Cyanine3.5 dimethyl
    Cyanine3.5 dimethyl is a non-sulfonated cyanine dye with good solubility in organic solvents and bright fluorescence in the yellow-orange spectrum range. The dye can be used as a non-reactive fluorophore for control experiments, calibration, and other technical applications.
    Cyanine3.5 dimethyl
  • HY-141646
    MIT-PZR
    MIT-PZR is a mitochondria-targeted,? low cytotoxicity fluorescent probe that can be used in live cells and in vivo imaging. Ex / Em = 485 / 705 nm
    MIT-PZR
Cat. No. Product Name / Synonyms Application Reactivity