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-D0444
    C.I. Acid brown 121
    C.I. Acid brown 121 is an acidic brown dye that can be adsorbed and removed by bentone clay.
    C.I. Acid brown 121
  • HY-D2518
    Cy3-PEG10000-DSPE
    Cy3-PEG10000-DSPE is a compound for the labeling and visualization of nanoparticles or other materials. Cy3-PEG10000-DSPE has a variety of applications including drug delivery, cellular imaging, tracing of bioprocesses, and the study of interactions at the molecular level.
    Cy3-PEG10000-DSPE
  • HY-D0354
    Mordant Orange 6
    Mordant Orange 6 is a mordant acid dye commonly used for dyeing wool fibers and other textiles.
    Mordant Orange 6
  • HY-D0470
    Acid orange 74
    Acid orange 74 is an azo dye.
    Acid orange 74
  • HY-185287
    TUG-1609
    TUG-1609 is a fluorescent tracer targeting free fatty acid receptor 2 (FFA2/GPR43) with a Kd value of 65.1 nM.
    TUG-1609
  • HY-D2673
    Cy7 HA (MW 5000)
    Cy7 HA (MW 55000) is a hyaluronic acid labeled with CY7 (HY-D0825). Cy7 HA (MW 5000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 740/770 nm).
    Cy7 HA (MW 5000)
  • HY-D2739
    SIMA phosphoramidite, 6-isomer
    SIMA phosphoramidite, 6-isomer is a xanthene dye with spectral characteristics similar to those of HEX but with a higher quantum yield. SIMA has higher stability during deprotection under alkaline conditions.
    SIMA phosphoramidite, 6-isomer
  • HY-D0519
    C.I. Pigment red 52:1
    C.I. Pigment red 52:1 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 52:1
  • HY-172627
    Rhod-FF tripotassium
    Rhod-FF tripotassium is a Rhod-2 derivative and cell-impermeant calcium indicator (Kd of 320 μM). Rhod-FF tripotassium indicates calcium concentration by fluorescence upon binding to calcium ions, with excitation at 552 nm and emission at 580 nm.
    Rhod-FF tripotassium
  • HY-W761989
    Direct brown 95
    Direct Brown 95, a synthetic dye, finds extensive application in the textile industry for imparting color to fabrics. It serves as a stain in histology and cytology, aiding in the differentiation of diverse cell types. Additionally, it serves as a marker in molecular biology, facilitating the detection of DNA and RNA.
    Direct brown 95
  • HY-D2856C
    FITC-PEG5000-Br
    FITC-PEG5000-Br 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-PEG5000-Br
  • HY-D0321
    Disperse Blue 183
    Disperse Blue 183 is a blue dye commonly used for fiber dyeing.
    Disperse Blue 183
  • HY-D2224
    Sulfo-Cy5.5 dUTP
    Sulfo-Cy5.5 dUTP is a dUTP far-infrared fluorescent dye containing sulfonated Cyanine5.5 group.
    Sulfo-Cy5.5 dUTP
  • HY-D2501
    Sulfo Cy7 N3
    Sulfo Cy7-N3 is a Sulfo Cy7-azide, which is a fluorescent dye. Sulfo Cy7-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 Cy7 N3
  • HY-D0458
    C.I. Acid red 106
    C.I. Acid red 106 is an acid red dye that can be adsorbed and removed by bentone clay.
    C.I. Acid red 106
  • HY-D0452
    C.I. Acid brown 75
    C.I. Acid brown 75 is an acidic brown dye that can be adsorbed and removed by bentone clay.
    C.I. Acid brown 75
  • HY-D2607
    ICG PEG5000 N3
    ICG PEG5000 N3 is a Indocyanine green (ICG) (HY-D0711)-azide fluorescent dye used to label for protein and nucleic acid. ICG PEG5000 N3 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 (Ex/Em=785/813 nm).
    ICG PEG5000 N3
  • HY-DN7075F
    FITC-inulin
    FITC-inulin is a FITC (HY-66019)-labeled inulin (Ex/Em=488/525 nm). FITC-inulin serves as an accurate and stable marker for in vivo renal function assessment. FITC-inulin exhibits pH-dependent fluorescence.
    FITC-inulin
  • HY-D2060
    ATTO 740
    ATTO 740 is a near-infrared dye (Ex/Em: 740/764 nm). ATTO 740 can be conjugated with the Cetuximab antibody (HY-P9905).
    ATTO 740
  • HY-D1810
    Sulfo-Cy3-E-dUTP
    Sulfo-Cy3-E-dUTP is enzymatically incorporated into DNA/cDNA as a substitute for its natural counterpart, dTTP. Sulfo-Cy3-E-dUTP can be used to produce biotinylated DNA probes for various detection applications.
    Sulfo-Cy3-E-dUTP
Cat. No. Product Name / Synonyms Application Reactivity