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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-D1482A
    Sulfo Cy5-tetrazine sodium
    Sulfo Cy5-tetrazine sodium is a tetrazine-coupled Cy5 (HY-D0821) derivative dye with fluorescence properties similar to CY5 (Ex/Em=633/647 nm). Sulfo-Cy5-tetrazine sodium is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    Sulfo Cy5-tetrazine sodium
  • HY-D0400
    C.I. Disperse yellow 23
    C.I. Disperse yellow 23 is a yellow dye commonly used for fiber dyeing.
    C.I. Disperse yellow 23
  • HY-D0453
    Disperse orange A
    Disperse orange A 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 orange A
  • HY-172168
    Orange Fluorescent PLGA nanoparticles, 100nm
    Orange Fluorescent PLGA nanoparticles, 100nm a nanoparticle made from the polymer PLGA and labeled with an orange fluorescent dye. Orange Fluorescent PLGA nanoparticles, 100nm can be used for drug delivery and for tracing.
    Orange Fluorescent PLGA nanoparticles, 100nm
  • HY-D0454
    C.I. Disperse red 54
    C.I. Disperse red 54 is a red dye commonly used for fiber dyeing.
    C.I. Disperse red 54
  • HY-117445
    Oxazole yellow
    Oxazole yellow is a cyanine dye composed of benzoxazole and quinoline rings connected by a linker. It is almost non-luminescent in water, but its green fluorescence is significantly enhanced after intercalation in double-stranded DNA. Oxazole yellow can be used to detect cell apoptosis.
    Oxazole yellow
  • HY-D2297
    AIE-GA
    AIE-GA is a Golgi apparatus (GA) fluorescent probe (green channel: λex = 405 nm, λem = 500-700 nm). AIE-GA has a favourable binding ability to interact with COX-2. AIE-GA binds to the cyclooxygenase catalytic site of COX-2.
    AIE-GA
  • HY-D2760
    BP Fluor 488 acid
    BP Fluor 488 acid is a powerful labeling dye. It will react with the amine group in antibody, proteins, peptides, amino-modified oligos, and other target molecules. The dye has an excitation peak at 499 nm and an emission peak at 520 nm. The conjugates are widely used in microscopy, flow cytometry, and other applications.
    BP Fluor 488 acid
  • HY-D0637
    Disperse Blue 106
    Disperse Blue 106 is a yellow dye commonly used for fiber dyeing.
    Disperse Blue 106
  • HY-160042C
    Cy3 labled AFP aptamer sodium
    Cy3 labled AFP aptamer sodium is a Cy3 labled AFP aptamer sodium.
    Cy3 labled AFP aptamer sodium
  • HY-D0431
    C.I. Pigment blue 56
    C.I. Pigment blue 56 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 blue 56
  • HY-160060B
    FAM labled MA3 aptamer sodium
    FAM labled MA3 aptamer sodiumis a FAM labled MA3 aptamer sodium.
    FAM labled MA3 aptamer sodium
  • HY-D2656
    Cy5.5 HA (MW 3000)
    Cy5.5 HA (MW 3000) is a hyaluronic acid labeled with CY5.5 (HY-D0924). Cy5.5 HA (MW 3000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 680/710 nm).
    Cy5.5 HA (MW 3000)
  • HY-D0594
    Disperse Red 278
    Disperse Red 278 is a red dye derived from anthraquinone. It is used in plastics, textiles and cosmetics.
    Disperse Red 278
  • HY-D2738
    BP Fluor 532 NHS ester
    BP Fluor 532 NHS ester is an amine reactive, yellow-emitting dye routinely used to label proteins or antibodies through primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules. The labeling occurs most efficiently at pH 7-9 and forms a stable, covalent amide bond. BP Fluor 532 is a bright yellow-fluorescent dye with pH insensitive emission from pH 4 to pH 10. The excitation of BP Fluor 532 is ideally suited for the frequency-doubled Nd:YAG laser line. BP Fluor 532 can be conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates, and is often used for the generation of stable signals in imaging and flow cytometry.
    BP Fluor 532 NHS ester
  • HY-D0510
    C.I. Pigment orange 34
    C.I. Pigment orange 34 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 34
  • HY-179890
    16:0 C11 BODIPY 505/515 DG
    16:0 C11 BODIPY 505/515 DG is a C11-BODIPY 505/515-labeled DG that can be used to prepare lipid nanoparticles for drug delivery (Ex/Em = 505/515 nm).
    16:0 C11 BODIPY 505/515 DG
  • HY-D2750
    Sulfo-Cy5 picolyl azide
    Sulfo-Cy5 Picolyl Azide is a fluorophore featuring a sulfonate group and an azide. Azide groups are click chemistry handles which are reactive towards terminal alkynes and strained cyclooctynes such as BCN or DBCO. Cy5 is a cyanine dye with excitation and emission maxima at 651 nm and 670 nm respectively. The sulfonate group on the Cy5 dye increases this compound’s water solubility.
    Sulfo-Cy5 picolyl azide
  • HY-179779
    C11-BODIPY 505/515 Sphingomyelin
    C11-BODIPY 505/515 Sphingomyelin is a C11-BODIPY 505/515-labeled Sphingomyelin that can be used to prepare lipid nanoparticles for drug delivery (Ex/Em = 505/515 nm).
    C11-BODIPY 505/515 Sphingomyelin
  • HY-W800691
    BP Fluor 350 picolyl azide
    BP Fluor 350 Picolyl Azide is a blue-fluorescent azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free click chemistry reaction to form a stable triazole and does not require Cu-catalyst or elevated temperatures.
    BP Fluor 350 picolyl azide
Cat. No. Product Name / Synonyms Application Reactivity