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-D0757
    Disperse blue 366
    Disperse blue 366 is a blue dye commonly used for fiber dyeing.
    Disperse blue 366
  • HY-D2436
    PTX-PEG-Cy3
    PTX-PEG-Cy3 (Paclitaxel-PEG-Cy3) is a Cy3 (HY-D0822) labeled PTX-PEG conjugate. The Cy3 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Cy3 has an emission maximum around 562-570 nm. PTX stabilizes tubulin polymerization. PTX can cause both mitotic arrest and apoptotic cell death. PTX also induces autophagy.
    PTX-PEG-Cy3
  • HY-D0416R
    Disperse yellow 9 (Standard)
    Disperse yellow 9 (Standard) is the analytical standard of Disperse yellow 9. This product is intended for research and analytical applications. Disperse yellow 9 is a yellow dye commonly used for fiber dyeing.
    Disperse yellow 9 (Standard)
  • HY-D2486
    Sulfo Cy3 bis NHS ester
    Sulfo Cy3 bis NHS ester is a derivative of Cy3 (HY-D0822) dye containing sulfonate ions. Sulfo Cy3 bis NHS ester can be used to label the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
    Sulfo Cy3 bis NHS ester
  • HY-W587874
    Disperse orange 3
    Disperse Orange 3 is a monoazo dye characterized by a dye content of 90% along with dispersing agents and surfactants; it features two aromatic rings, one of which possesses an amino group while the other is modified with a nitro group, exhibiting a prominent absorption peak at 415 nm.
    Disperse orange 3
  • HY-D0579
    Basic red 18:1
    Basic red 18:1 is an alkaline dye that can be removed from aqueous solutions in intermittent adsorption systems using tree ferns as biosorbents.
    Basic red 18:1
  • HY-D0297
    Solvent blue 12
    Solvent blue 12 is a blue dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
    Solvent blue 12
  • HY-172728
    Difluorocarboxyfluorescein NHS Ester, 6-isomer
    Difluorocarboxyfluorescein NHS Ester, 6-isomer is an amine-reactive fluorinated analog of fluorescein that overcomes some of the key limitations of fluorescein, including greater photostability and a lower pKa (pKa ~ 4.7 versus 6.4 for fluorescein), making its fluorescence essentially pH insensitive in the physiological pH range. Although the mixed isomers of Difluorocarboxyfluorescein NHS Ester, is a preferred, routinely used fluorescent dye for labeling proteins, peptides and nucleotides, purification of peptide and nucleotides labeled with 5(6) isomers might be troublesome due to significant signal broadening in HPLC purification. Peptides and nucleotides labeled with a single isomer usually give better resolution in HPLC purification that is often required in the conjugation processes.
    Difluorocarboxyfluorescein NHS Ester, 6-isomer
  • HY-D2740
    ROX azide, 6-isomer
    ROX azide, 6-isomer is an alkyne-reactive derivative of ROX (Rhodamine X, Rhodamine 101) dye. ROX is a red-emitting fluorophore possessing high brightness and fluorescence quantum yield. This reagent is a pure 6-isomer. It is used for labeling alkyne and cycloalkyne-containing biomolecules via copper-catalyzed and copper-free click chemistry reactions.
    ROX azide, 6-isomer
  • HY-N8407R
    Carminic acid (Standard)
    Carminic acid (Standard) is the analytical standard of Carminic acid (HY-N8407). This product is intended for research and analytical applications. Carminic acid is a widely used and orally active natural red pigment that can be used in industries such as food, cosmetics, and pharmaceuticals. In addition, carminic acid has anti-inflammatory and antioxidant activities.
    Carminic acid (Standard)
  • HY-W800769
    BP Fluor 532 azide plus
    BP Fluor 532 Azide Plus is a fluroescent agent with a terminal azide group. The fluroescent compound has a max absorption at 532 nm and emission at 554 nm. The BP Fluor 532 Azide Plus was designed with a copper-chelating system within its structure, enabling the formation of strong, active copper complexes that act as both reactant and catalyst in CuAAC reactions.
    BP Fluor 532 azide plus
  • HY-D2225
    IR-34
    IR-34 is an indole cyanine dye.
    IR-34
  • HY-D2880
    Sulfo-Cyanine5 DBCO
    		98.02%
    Sulfo-Cyanine5 DBCO is a near-infrared red (NIR) fluorescent dye. Sulfo-Cyanine5 DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups (Ex/Em =646/670 nm).
    Sulfo-Cyanine5 DBCO
  • HY-151728
    Trisulfo-Cy3-Alkyne
    Trisulfo-Cy3-Alkyne is a water soluble cyanine linker containing an alkyne group, which enables Click Chemistry to attach trisulfo-Cy3 to various azide-bearing molecules. Trisulfo-Cyanine3 is a fluorophore which is compatible with a wide range of fluorescent scanners, imagers, microscopes, etc. It is a bright and photostable dye and can be easily detected in gels by naked eye in low amounts (nmol). Reagent grade, for research use only. Trisulfo-Cy3-Alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Trisulfo-Cy3-Alkyne
  • HY-D2736
    BP Light 800 NHS ester
    BP Light 800 NHS ester is an amine reactive hydrophilic fluorochrome . It can be conjugated to antibody with higher D/P ratio and widely used applications including western blotting, microscopy, flow cytometry, and cell based assays.
    BP Light 800 NHS ester
  • HY-D2603
    ICG PEG NH2 (MW 10000)
    ICG PEG NH2 (MW 10000) is a polyethylene glycol derivative containing Indocyanine green (ICG) (HY-D0711) fluorescent dye and polyethylene glycol (PEG) and an amino group. The Indocyanine green fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. ICG PEG NH2 (MW 10000) can be used for fluorescence imaging, fluorescence tracing and fluorescence labeling (Ex/Em = 785/813 nm).
    ICG PEG NH2 (MW 10000)
  • HY-W927376
    Boc-Val-Arg-AMC
    Boc-Val-Arg-AMC is a synthetic peptide compound. As a specific fluorescent substrate, Boc-Val-Arg-AMC can be specifically cleaved by specific enzymes, especially thrombin, to release a fluorescent molecule AMC (7-amino-4-methylcoumarin), which can be used to monitor thrombin activity. Boc-Val-Arg-AMC can be used to detect thrombin activity in plasma samples.
    Boc-Val-Arg-AMC
  • HY-D0481
    C.I. Acid orange 67
    C.I. Acid orange 67 is an acidic orange-yellow dye that can be adsorbed and removed by bentone.
    C.I. Acid orange 67
  • HY-D2848A
    Chitosan-Cy5.5 (MW 55000)
    Chitosan-Cy5.5 (MW 55000) is a fluorescent dye composed of CY5.5 (HY-D0924) and chitosan. Chitosan-Cy5.5 (MW 55000) can be used for bioimaging, drug delivery and biomaterial research (Ex/Em = 680/710 nm).
    Chitosan-Cy5.5 (MW 55000)
  • HY-D0316
    Disperse red 167:1
    Disperse red 167:1 is a red dye derived from anthraquinone. It is used in plastics, textiles and cosmetics.
    Disperse red 167:1
Cat. No. Product Name / Synonyms Application Reactivity