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-D2657
    Cy5.5 HA (MW 5000)
    Cy5.5 HA (MW 5000) is a hyaluronic acid labeled with CY5.5 (HY-D0924). Cy5.5 HA (MW 5000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 680/710 nm).
    Cy5.5 HA (MW 5000)
  • HY-D2682
    Cy7 HA MA (MW 5000)
    Cy7 HA MA (MW 5000) is a hyaluronic acid methacrylate labeled with CY7 (HY-D0825). Cy7 HA MA (MW 5000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 740/770 nm).
    Cy7 HA MA (MW 5000)
  • HY-D0103
    Fluorescein diacetate 5-maleimide
    Fluorescein diacetate 5-maleimide is a colorimetric probe formed by the reaction of adipic acid dihydrazide and fluorescein isothiocyanate.
    Fluorescein diacetate 5-maleimide
  • HY-158825C
    Cy3 labled Cepadacursen sodium
    Cy3 labled Cepadacursen sodium is a Cy3 labled Cepadacursen sodium.
    Cy3 labled Cepadacursen sodium
  • HY-D3449
    8-(9-Bromoanthracene)-BODIPY 505/515
    8-(9-Bromoanthracene)-BODIPY 505/515 is a fluorescence turn-on probe with selective fluorescence turn-on response towards hydroxyl radical. 8-(9-Bromoanthracene)-BODIPY 505/515 can be used to detect reactive oxygen/nitrogen species (ROS/RNS). (Ex/Em = 505/515 nm)
    8-(9-Bromoanthracene)-BODIPY 505/515
  • HY-D0236R
    Congo Red (Standard)
    Congo Red (Standard) is the analytical standard of Congo Red. This product is intended for research and analytical applications. Congo Red is an azo dye. Congo Red (CR) binding been used as a diagnostic test for the presence of amyloid in tissue sections.
    Congo Red (Standard)
  • HY-107864A
    Erythrosine B aluminum
    Erythrosine B aluminum is a visibly red dye with colorimetric and fluorescent properties that serves as an important dye for many Gram-positive and -negative bacteria. Erythrosine B aluminum can be used for live/dead determination in both colorimetric and fluorescence-based assays for low, medium and high-throughput experimentation.
    Erythrosine B aluminum
  • HY-D2646
    Cy5 HA (MW 200000)
    Cy5 HA (MW 200000) is a hyaluronic acid labeled with CY5 (HY-D0821). Cy5 HA (MW 200000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 633/670 nm).
    Cy5 HA (MW 200000)
  • HY-D2358
    Glucosamine-CY5.5
    Glucosamine-CY5.5 is CY5.5-labeled Glucosamine (HY-B1125). Glucosamine-CY5.5 can be used to localize Glucosamine in living cells.
    Glucosamine-CY5.5
  • HY-D2648
    Cy5 HA MA (MW 3000)
    Cy5 HA MA (MW 3000) is a hyaluronic acid methacrylate labeled with CY5 (HY-D0821). Cy5 HA MA (MW 3000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 633/670 nm).
    Cy5 HA MA (MW 3000)
  • HY-D1415
    Cyanine 5 Bisfunctional MTSEA Dye potassium
    Cyanine 5 Bisfunctional MTSEA Dye potassium 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 5 Bisfunctional MTSEA Dye potassium
  • HY-D0426
    C.I. Pigment red 8
    C.I. Pigment red 8 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 8
  • HY-D0555
    C.I. Disperse orange 73
    C.I. Disperse orange 73 is an orange-orange dye commonly used for fiber dyeing.
    C.I. Disperse orange 73
  • HY-160280
    DOPE-PEG2000-Fluor 647
    DOPE-PEG2000-Fluor 647 is a PEG-lipid-dye conjugate. composed of a DOPE phospholipid and a Fluor 647 dye.
    DOPE-PEG2000-Fluor 647
  • HY-W753198
    CY5 triethylamine
    CY5 triethylamine is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    CY5 triethylamine
  • HY-D1209
    Acid Red 35
    Acid Red 35 is an acid dye that can be decolorized when aluminum sulfate is used as a coagulant.
    Acid Red 35
  • HY-P0019B
    Z-Gly-Gly-Arg-AMC TFA
    Z-Gly-Gly-Arg-AMC TFA is the TFA salt form of Z-Gly-Gly-Arg-AMC (HY-P0019). Z-Gly-Gly-Arg-AMC TFA is a thrombin-specific fluorogenic substrate for testing of thrombin generation in PRP and platelet-poor plasma (PPP) (Ex/Em = 390/480 nm).
    Z-Gly-Gly-Arg-AMC TFA
  • HY-D0340
    Fluorescent Brightener 185
    Fluorescent Brightener 185 is an optical brightener dye.
    Fluorescent Brightener 185
  • HY-D2022
    ATTO 514
    ATTO 514 is a new type of hydrophilic fluorescent probe with strong stability and maximum excitation/emission wavelength: 511/531 nm.
    ATTO 514
  • HY-D0424
    C.I. Acid blue 25
    C.I. Acid blue 25 is an acidic blue dye that can be adsorbed and removed by bentone.
    C.I. Acid blue 25
Cat. No. Product Name / Synonyms Application Reactivity