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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-D2438
    CDDP-PEG-Cy3
    CDDP-PEG-Cy3 is a CDDP-PEG conjugate labeled with Cy3 (HY-D0822). The Cy3 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. The maximum emission wavelength of Cy3 is approximately 562-570 nm. Cisplatin (CDDP) (HY-17394) is an antineoplastic chemotherapy agent by cross-linking with DNA and causing DNA damage in cancer cells. Cisplatin activates ferroptosis and induces autophagy.
    CDDP-PEG-Cy3
  • HY-P3699A
    TNO003 TFA
    TNO003 TFA is a selective fluorogenic substrate for stromelysin-1 (MMP-3). TNO003 TFA has higher selectivity for MMP-3 than MMP-1, MMP-2, MMP-7, MMP-8, MMP-9 and MMP-13. TNO003 TFA can be used for the determination of stromelysin activity (Ex/Em = 360/490 nm).
    TNO003 TFA
  • HY-D0445
    C.I. Pigment orange 16
    C.I. Pigment orange 16 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 orange 16
  • HY-D1097A
    Cyanine 3.18 TEA
    Cyanine 3.18 TEA belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
    Cyanine 3.18 TEA
  • HY-D2483
    Asante potassium green-1 (TMA)
    Asante potassium green-1 (APG-1) TMA is a cell-impermeable K+ (potassium) sensitive fluorescent indicator (excitation/emission = 525/545 nm).
    Asante potassium green-1 (TMA)
  • HY-D2376
    BH-Vis
    BH-Vis is a two-photon fluorescent probe that inhibits cell plasma membrane (CPM). BH-Vis has great potential to accurately identify pyroptosis at the cellular level during AAA development in the mouse abdominal aortic aneurysm AAA model.
    BH-Vis
  • HY-D0257R
    Tartrazine (Standard)
    Tartrazine (Standard) is the analytical standard of Tartrazine. This product is intended for research and analytical applications. Tartrazine is an azo acid dye, orange-yellow powder, soluble in water and turns yellow. It is mainly used as a synthetic lemon yellow azo dye for food coloring. It is the most stable colorant.
    Tartrazine (Standard)
  • HY-D0466
    Acid orange 51
    Acid orange 51 is an azo dye.
    Acid orange 51
  • HY-D2669
    Cy5.5 HA biotin 3000
    Cy5.5 HA biotin 3000 is a biotinylated hyaluronic acid labeled with CY5.5 (HY-D0924). Cy5.5 HA biotin 3000 is widely used for cell imaging and in vivo imaging of shallow tissues (Ex/Em = 680/710 nm).
    Cy5.5 HA biotin 3000
  • HY-D2490
    Sulfo Cy5.5-N3
    Sulfo Cy5.5-N3 is a Sulfo Cy5.5-azide, which is a fluorescent dye. Sulfo Cy5.5-N3 can be used in cell imagine by Click reaction. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
    Sulfo Cy5.5-N3
  • HY-168322
    2-Hydroxy nile red trifluoromethanesulfonate
    2-Hydroxy nile red trifluoromethanesulfonate is a fluorescent probe, that enters into oligodeoxyribonucleic acid as a nucleotide replacement. 2-Hydroxy nile red trifluoromethanesulfonate can be used as a DNA probe for detecting the polar changes in tumor microenvironments.
    2-Hydroxy nile red trifluoromethanesulfonate
  • HY-D2536
    Cy5-PEG-N3 (MW 10000)
    Cy5-PEG-N3 (MW 10000) is a Cy5 (HY-D0821)-azide fluorescent dye used to label for protein and nucleic acid. Cy5-PEG-N3 (MW 10000) 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 10000)
  • HY-D0739
    Disperse yellow 241
    Disperse yellow 241 is a yellow dye commonly used for fiber dyeing.
    Disperse yellow 241
  • HY-D2707
    Cy3 Dextran (MW 5000)
    Cy3 Dextran (MW 5000) is a fluorescent labeling reagent that combines Cy3 (HY-D0822) fluorescent dye and Dextran (HY-112624). The Cy3 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Dextran has an inhibitory effect on thrombocyte aggregation and coagulation factors and is used as a plasma volume expander (Ex/Em = 550/570 nm).
    Cy3 Dextran (MW 5000)
  • HY-D0289
    Disperse violet 8
    Disperse violet 8 is a violet dye commonly used for fiber dyeing.
    Disperse violet 8
  • HY-D2847B
    FITC-PEG-DBCO (MW 5000)
    FITC-PEG-DBCO (MW 5000) is a fluorescent dye composed of FITC (HY-66019), PEG and dibenzocyclooctyne (DBCO). DBCO is a cycloalkyne that can react with molecules containing azide groups through "click chemistry" to achieve coupling (Ex/Em = 488/525 nm).
    FITC-PEG-DBCO (MW 5000)
  • HY-D0551
    C.I. Basic red 24
    C.I. Basic red 24 is an alkaline dye that can be removed from aqueous solutions in intermittent adsorption systems using tree ferns as biosorbents.
    C.I. Basic red 24
  • HY-D2854A
    FITC-PEG-CL (MW 1000)
    FITC-PEG-CL (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-CL (MW 1000)
  • HY-W800695
    BP Fluor 405 DBCO
    BP Fluor 405 DBCO is a blue-fluorescent dye that often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode. BP Fluor 405 DBCO reacts with azides via a copper-free click chemistry reaction to form a stable triazole and does not require a Cu-catalyst or elevated temperatures.
    BP Fluor 405 DBCO
  • HY-D0522
    Reactive orange 16
    Reactive orange 16 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 16
Cat. No. Product Name / Synonyms Application Reactivity