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-D2892J
    Rhodamine-PEG20000
    Rhodamine-PEG20000 a fluorescent PEG derivative composed of Rhodamine B (HY-Y0016) and PEG. Rhodamine-PEG20000 can be used for fluorescent labeling and imaging (Ex/Em=546/610 nm).
    Rhodamine-PEG20000
  • HY-D1591
    BODIPY R6G methyl ester
    		99.76%
    BODIPY R6G methyl ester (compound 5′-1) is a BODIPY-like fluorescent dye with good light stability and insensitive to pH value. BODIPY R6G methyl ester shows good photostability, high sensitivity and insensitive to pH value. BODIPY R6G methyl ester can be used in research areas such as photodynamic research, PH probes, ion recognition, photocatalysis, protein labeling, cell imaging, and proteomic analysis.
    BODIPY R6G methyl ester
  • HY-NP0192
    Wheat Germ Agglutinin (Biotinylated)
    Wheat Germ Agglutinin (WGA) Biotinylated is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Wheat Germ Agglutinin (WGA) Biotinylated is a biological material or organic compound that can be used in life science research.
    Wheat Germ Agglutinin (Biotinylated)
  • HY-101889
    Cresyl Violet perchlorate
    Cresyl Violet perchlorate is a red fluorescent stain, which can be used to stain neurons.
    Cresyl Violet perchlorate
  • HY-151776
    Cy3 methyltetrazine
    Cy3 methyltetrazine (TZ-Cy3) is a click chemistry reagent with methyltetrazine building blocks that is highly reactive towards cyclooctene. Cy3 methyltetrazine is also a tetrazine-modified fluorescent probe that can be used to analyze protein phosphorylation in solution and living cells.
    Cy3 methyltetrazine
  • HY-D2796B
    FITC-PEG5000-OH
    FITC-PEG5000-OH is a fluorescent dye composed of polyethylene glycol (PEG), FITC (HY-66019) and a Hydroxyl group. FITC-PEG5000-OH can be used for fluorescent labeling and imaging.
    FITC-PEG5000-OH
  • HY-151704
    ICG-alkyne
    		99.17%
    ICG-alkyne is a short-wave infrared (SWIR)-emitting cyanine fluorescent probe based on alkyne-derivatized indocyanine green. ICG-alkyne can undergo click chemistry reaction to conjugate with antibody molecules via binding to the azide groups introduced into antibodies. ICG-alkyne enables SWIR fluorescent molecular imaging of breast tumors in living mice. ICG-alkyne can be used in breast cancer-related research.
    ICG-alkyne
  • HY-179074E
    FITC-Polysucrose 170
    FITC-Polysucrose 170 is FITC-labeled Polysucrose 170. FITC-Polysucrose 170 is mainly used for permeability and microcirculation studies (Ex/Em = 488/525 nm).
    FITC-Polysucrose 170
  • HY-D0891
    NSP-AS
    		99.35%
    NSP-AS is chemiluminescent acridinium substrate II and can be used in homo geneous assays.
    NSP-AS
  • HY-D0112
    7-Hydroxycoumarin-4-acetic acid
    		98.71%
    7-Hydroxycoumarin-4-acetic acid, a pH-indicator dye, is covalently bound to bovine serum albumin (BSA) at the positions of reactive amino groups (λmax=326 nm).
    7-Hydroxycoumarin-4-acetic acid
  • HY-P4339
    Ala-Phe-Lys-AMC
    		99.94%
    Ala-Phe-Lys-AMC is a fluorogenic substrate, which can be used for residual plasmin activity assay.
    Ala-Phe-Lys-AMC
  • HY-126943
    SAHA-BPyne
    		98.07%
    SAHA-BPyne is an activity-based protein profiling (ABPP) probe for detecting HDAC activity, which covalently labels the proximal proteins through a photoactivation. SAHA-BPyne inhibits HDAC activity in HeLa nuclear lysate with an IC50 of less than 5 μM.
    SAHA-BPyne
  • HY-NP0136
    Lycopersicon esculentum (Tomato) Lectin (Fluorescein)
    Lycopersicon esculentum (Tomato) Lectin (LEL) Fluorescein is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Lycopersicon esculentum (Tomato) Lectin (LEL) Fluorescein is a biological material or organic compound that can be used in life science research.
    Lycopersicon esculentum (Tomato) Lectin (Fluorescein)
  • HY-D2192
    Ag2S-PEG-NH2 (1200 nm)
    Ag2S-PEG-NH2 (1200 nm) is a fluorescent dyes.
    Ag2S-PEG-NH2 (1200 nm)
  • HY-D2024
    ATTO 550 streptavidin
    ATTO 550 streptavidin is a streptavidin derivative of ATTO 550, it can label protein or antibody, the maximum excitation/emission wavelength: 554/576 nm.
    ATTO 550 streptavidin
  • HY-D0050
    5(6)-Carboxy-2',7'-dichlorofluorescein diacetate N-succinimidyl ester
    5(6)-Carboxy-2',7'-dichlorofluorescein diacetate N-succinimidyl ester (cDCFDASE) is a fluorescent probe. 5(6)-Carboxy-2',7'-dichlorofluorescein diacetate N-succinimidyl ester can be used to evaluate the intracellular pH (pHin) of living cells at a medium pH (pHex).
    5(6)-Carboxy-2',7'-dichlorofluorescein diacetate N-succinimidyl ester
  • HY-D0078
    DCIA
    DCIA is a fluorescent dye. DCIA contains a coumarin fluorophore and conjugates specifically with free cysteines in the protein.
    DCIA
  • HY-D1109
    5(6)-SFX ,SE
    5(6)-SFX ,SE (Compound SFX-SE) is a fluorescent dye for labeling primary amines and nascent proteins.
    5(6)-SFX ,SE
  • HY-D1796
    Vari Fluor 594 SE
    Vari Fluor 594 SE (VF 594 SE) is a dye marker of the Vari Fluor SE series (Ex/Em=585 nm/609 nm). The Vari Fluor SE series of dyes are a class of fluorescent dyes containing NHS ester groups used to label free amines (-NHX) on antibodies, proteins, peptides, amine-modified oligonucleotides and other biomolecules.
    Vari Fluor 594 SE
  • HY-W654272
    4-Methylumbelliferyl-α-L-iduronide 2-sulfate sodium
    		98.77%
    4-Methylumbelliferyl-α-L-iduronide 2-sulfate (4-MU-α-idoa 2-sulfate) sodium is a fluorogenic substrate of iduronate-2-sulfatase (I2S). 4-Methylumbelliferyl-α-L-iduronide 2-sulfate sodium can be hydrolyzed by lysosomal enzyme α-l-iduronidase (IDUA) and release the fluorophore 4-Methylumbelliferone (HY-N0187). 4-Methylumbelliferyl-α-L-iduronide 2-sulfate sodium can be used to detect Hurler syndrome.
    4-Methylumbelliferyl-α-L-iduronide 2-sulfate sodium
Cat. No. Product Name / Synonyms Application Reactivity