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-D1774
    5-ROX-SE
    5-ROX-SE is the amine-reactive form of 5-carboxy-X-rhodamine single isomer.
    5-ROX-SE
  • HY-D2882B
    RB-PEG-OH (MW 1000)
    RB-PEG-OH (MW 1000) (Rhodamine B-PEG-OH (MW 1000)) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and a Hydroxyl group. RB-PEG-OH (MW 1000) can be used for fluorescent labeling and imaging (Ex/Em = 546/610 nm).
    RB-PEG-OH (MW 1000)
  • HY-D1879
    SPiDER-βGal-2
    		98.39%
    SPiDER-βGal-2 is a fluorogenic β-galactosidase substrate and suitable for labeling live cells in culture and in living tissues. SPiDER-βGal-2 can generate quinone methide through enzymatic reaction and form covalent bonds with nucleophilic functional groups of proteins near the molecule, so that the fluorescent product is fixed in living cells (Ex/Em = 493, 525 nm/560 nm).
    SPiDER-βGal-2
  • HY-D1790
    Vari Fluor 640 SE
    Vari Fluor 640 SE (VF 640 SE) is a dye marker of the Vari Fluor SE series (Ex/Em=648 nm/664 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 640 SE
  • HY-D1803
    Vari Fluor 565 SE
    Vari Fluor 565 SE (VF 565 SE) is a dye marker of the Vari Fluor SE series (Ex/Em=563 nm/594 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 565 SE
  • HY-D2892B
    Rhodamine-PEG (MW 750)
    Rhodamine-PEG (MW 750) a fluorescent PEG derivative composed of Rhodamine B (HY-Y0016) and PEG. Rhodamine-PEG (MW 750) can be used for fluorescent labeling and imaging (Ex/Em = 546/610 nm).
    Rhodamine-PEG (MW 750)
  • HY-NP0163
    Erythrina Cristagalli Lectin (Agarose)
    Erythrina Cristagalli Lectin (ECL) Agarose is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Erythrina Cristagalli Lectin (ECL) Agarose is a biological material or organic compound that can be used in life science research.
    Erythrina Cristagalli Lectin (Agarose)
  • HY-D2873
    Sulfo Cy7 tyramide
    		Chemical 99.13%
    Sulfo Cy7 tyramide, a red fluorescent dye (Ex=740 nm, Em=770 nm), is utilized as reporter fluorescent substrate of horseradish peroxidase (HRP)-catalyzed deposition for tyramide signal amplification (TSA). Sulfo Cy7 tyramide can be used for multiplex Immunohistochemistry (mIHC).
    Sulfo Cy7 tyramide
  • HY-D1089
    6-JOE, SE
    6-JOE, SE is an amine-reactive fluorescent probe and is suitable for postsynthetic labeling of amino-modified oligonucleotides.
    6-JOE, SE
  • HY-D2132
    Sulfo-Cy5.5-ALN
    Sulfo-Cy5.5-ALN is a fluorescent labeled alendronate, which targets bone. Sulfo-Cy5.5-ALN binds to hydroxyapatite and differentiated osteoblasts in vitro. Sulfo-Cy5.5-ALN selectively binds to the mineralized areas of the tumor. Sulfo-Cy5.5-ALN can be used to detect bone overgrowth in prostate bone metastasis.
    Sulfo-Cy5.5-ALN
  • HY-W750458
    Acid Violet 7
    Acid Violet 7 is an azo dye that can be used to determine the degradation of dyes by various microorganisms.
    Acid Violet 7
  • HY-W020798
    1-Palmitoyl-2-[3-(diphenylhexatriene)propanoyl]-sn-phosphatidylcholine
    1-Palmitoyl-2-[3-(diphenylhexatriene)propanoyl]-sn-phosphatidylcholine is a fluorescent probe with a polar phosphatidylethanolamine head group for the determination of surface lipid oxidation in lipoproteins and plasma.
    1-Palmitoyl-2-[3-(diphenylhexatriene)propanoyl]-sn-phosphatidylcholine
  • HY-D1225
    Reactive red 180
    Reactive red 180 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive red 180
  • HY-NP0177
    Erythrina Cristagalli Lectin (Biotinylated)
    Erythrina Cristagalli Lectin (ECL) Biotinylated is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Erythrina Cristagalli Lectin (ECL) Biotinylated is a biological material or organic compound that can be used in life science research.
    Erythrina Cristagalli Lectin (Biotinylated)
  • HY-D1985
    ATTO 725 Streptavidin
    ATTO 725 Streptavidin is a streptavidin derivative of ATTO 725, it can label protein or antibody, the maximum excitation/emission wavelength: 728/751 nm.
    ATTO 725 Streptavidin
  • HY-135367B
    pyCTZ hydrochloride
    pyCTZ (Pyridyl CTZ) hydrochloride, a pyridyl Coelenterazine (CTZ) analog, and is an ATP-independent pyridyl substrate of LumiLuc luciferase. pyCTZ hydrochloride generates strong blue bioluminescence in the presence of luciferases. pyCTZ hydrochloride can be used for aequorin-based calcium sensing.
    pyCTZ hydrochloride
  • HY-D2309
    IRDye700Dx (Maleimide)
    IRDye700Dx (IRDye 700DX NHS ester) Maleimide is a near-infrared (NIR) phthalocyanine dye that acts as a highly flexible photosensitizer.
    IRDye700Dx (Maleimide)
  • HY-D1150
    Mito-PN
    Mito-PN 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.
    Mito-PN
  • HY-157916
    ARP
    ARP (Aldehyde reactive probe) is an aldehyde reactive probe for detecting abasic site (common DNA lesions and intermediates in mutagenesis and carcinogenesis) in DNA, which specificially tags AP site with biotin residues. ARP is highly sensitive with a femtomolar-level basic site detection capabilities (less than one site per 104 nucleotides).
    ARP
  • HY-157529
    IR820-PTX
    IR820-PTX, an IR-820 (HY-136886)-Paclitaxel (HY-B0015) conjugate, is an amphipathic small molecule prodrug. IR820-PTX effectively inhibits tumor growth via combined photothermal therapy (PTT) and chemotherapy.
    IR820-PTX
Cat. No. Product Name / Synonyms Application Reactivity