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-D0405
    C.I. Pigment yellow 74
    C.I. Pigment yellow 74 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 yellow 74
  • HY-D2796
    FITC-PEG-OH (MW 400)
    FITC-PEG-OH (MW 400) is a fluorescent dye composed of polyethylene glycol (PEG), FITC (HY-66019) and a Hydroxyl group. FITC-PEG-OH (MW 400) can be used for fluorescent labeling and imaging.
    FITC-PEG-OH (MW 400)
  • HY-D2678
    Cy7 HA (MW 500000)
    Cy7 HA (MW 500000) is a hyaluronic acid labeled with CY7 (HY-D0825). Cy7 HA (MW 500000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 740/770 nm).
    Cy7 HA (MW 500000)
  • HY-D1280
    NanoLuc substrate 1
    NanoLuc substrate 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.
    NanoLuc substrate 1
  • HY-D2240
    Sulfo-Cy3.5-DBCO
    Sulfo-Cy3.5-DBCO is a fluorescent dye. Sulfo-Cy3.5-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.
    Sulfo-Cy3.5-DBCO
  • HY-D0366
    Acid Violet 17
    Acid Violet 17 is an acidic dye that can be adsorbed from aqueous solution by orange peel.
    Acid Violet 17
  • HY-D2633
    Cy3 HA MA (MW 50000)
    Cy3 HA MA (MW 50000) is a hyaluronic acid methacrylate labeled with CY3 (HY-D0822). Cy3 HA MA (MW 50000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 550/570 nm).
    Cy3 HA MA (MW 50000)
  • HY-172268
    R6G phosphoramidite, 6-isomer
    R6G phosphoramidite for oligonucleotide synthesis, pure 6-isomer. R6G (rhodamine 6G) is a xanthene dye of the rhodamine family with high fluorescence quantum yield and high molar extinction coefficient. Relative to those of fluorescein, the absorption (518 nm) and emission (542 nm) maxima of 6-R6G are shifted into the long-wave region.
    R6G phosphoramidite, 6-isomer
  • HY-D2756
    OG 488 alkyne
    OG 488 alkyne is a bright, green-fluorescent alkyne-activated probe routinely used for imaging of azide-containing biomolecules. OG 488 Alkyne reacts with azides via a copper-catalyzed click reaction (CuAAC) to form a stable triazole linker.
    OG 488 alkyne
  • HY-D2626
    Cy3 HA (MW 100000)
    Cy3 HA (MW 100000) is a hyaluronic acid labeled with CY3 (HY-D0822). Cy3 HA (MW 100000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 550/570 nm).
    Cy3 HA (MW 100000)
  • HY-D0100
    Fluorescein-diacetate-5-isothiocyanat
    Fluorescein-diacetate-5-isothiocyanat is a colorimetric probe formed by the reaction of adipic acid dihydrazide and fluorescein isothiocyanate.
    Fluorescein-diacetate-5-isothiocyanat
  • HY-D2101
    TAMRA-PEG3-NH2
    TAMRA-PEG3-NH2 is a dye derivative of TAMRA (HY-135640) containing 3 PEG units. TAMRA-PEG3-NH2 contains NH2 groups, which can undergo condensation reactions with carboxyl groups to form covalent bonds.
    TAMRA-PEG3-NH2
  • HY-D2610
    ICG PEG DSPE (MW 2000)
    ICG PEG DSPE (MW 2000) is a PEG phospholipid with Indocyanine green (ICG) (HY-D0711) dye used in protein/nucelic acid labeling and fluorescence microscopy. ICG PEG DSPE (MW 2000) can self-assemble in aqueous solution to form micelles/lipid bilayer and used to prepare liposomes or nanoparticles for nutrients delivery such as mRNA or DNA vaccine (Ex/Em = 785/813 nm).
    ICG PEG DSPE (MW 2000)
  • HY-132270
    FAM amine, 5-isomer
    FAM amine, 5-isomer is a fluorescein linker that undergoes enzymatic transamination. The addition of the amine group makes the compound more reactive with carboxylic acids, activated NHS ester and other carbonyl groups.
    FAM amine, 5-isomer
  • HY-D2672
    Cy7 HA (MW 3000)
    Cy7 HA (MW 3000) is a hyaluronic acid labeled with CY7 (HY-D0825). Cy7 HA (MW 3000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 740/770 nm).
    Cy7 HA (MW 3000)
  • HY-D2741
    MB 488 NHS ester
    MB 488 NHS ester is a fluroescent agent with a terminal NHS ester group. MB 488 NHS ester is a green fluorescent, very hydrophilic dye molecule that has a maximal absorption of 501 nm and emission at 524 nm. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
    MB 488 NHS ester
  • HY-D2872
    5-AF594 tyramide
    		Chemical 98.93%
    5-AF594 tyramide is a red fluorescent dye (Ex=590 nm, Em=618 nm). 5-AF594 tyramide is utilized as reporter fluorescent substrate of horseradish peroxidase (HRP)-catalyzed deposition for tyramide signal amplification (TSA). 5-AF594 tyramide can be used for multiplex immunohistochemistry (mIHC).
    5-AF594 tyramide
  • HY-D0368
    Pigment Yellow 108
    Pigment Yellow 108 is a disazomethine dye with solid-state fluorescence.a biologically active chemical.
    Pigment Yellow 108
  • HY-W998658
    BODIPY 564/570
    BODIPY 564/570 is a fluorescent dye that can be used in labeling superparamagnetic nanoparticles (MNPs). BODIPY 564/570 exhibits a maximal excitation wavelength of 564 nm and a maximal emission wavelength of 570 nm.
    BODIPY 564/570
  • HY-D2594
    Cy7.5-PEG-DSPE (MW 3400)
    Cy7.5-PEG-DSPE (MW 3400) is a PEG phospholipid with CY7.5 (HY-D0926) dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy7.5-PEG-DSPE (MW 3400) can self-assemble in aqueous solution to form micelles/lipid bilayer and used to prepare liposomes or nanoparticles for nutrients delivery such as mRNA or DNA vaccine (Ex/Em = 770/820 nm).
    Cy7.5-PEG-DSPE (MW 3400)
Cat. No. Product Name / Synonyms Application Reactivity