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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-W072530
    [Ir(ppy)2(bpy)]PF6
    [Ir (ppy)2 (bpy)]PF6 is a cyclometalated iridium (III) photosensitizer. [Ir (ppy)2 (bpy)]PF6 can be used in homogeneous photocatalytic systems to achieve visible light-induced water splitting for hydrogen production. [Ir (ppy)2 (bpy)]PF6 functions in homogeneous photocatalytic systems for visible light-driven water splitting to produce hydrogen.
    [Ir(ppy)2(bpy)]PF6
  • HY-DY1107
    Halo tag TMR (solution)
    Halo tag TMR (solution) is a red fluorescent dye composed of Halo tag ligand molecules and TMR (TAMRA). Halo tag can quickly and stably covalently bind to Halo protein with high specificity and affinity (Ex/Em = 550/576 nm).
    Solvent and concentration: DMSO: 5 mM
    Halo tag TMR (solution)
  • HY-P0201AF
    Substance P, FAM-labeled TFA
    		98.31%
    Substance P, FAM-labeled (TFA) is Substance P TFA (HY-P02101A) labeled with FAM fluorophore. Substance P TFA (Neurokinin P TFA) is a neuropeptide that acts as a neurotransmitter and neuromodulator in the central nervous system. The endogenous receptor of Substance P is neurokinin 1 receptor (NK1R).
    Substance P, FAM-labeled TFA
  • HY-D1550
    10-(4-(Bis(2-acetoxyethyl)amino)phenyl)-BODIPY 505/515
    		98.78%
    10-(4-(Bis(2-acetoxyethyl)amino)phenyl)-BODIPY 505/515 is a fluorescent dye for Cu2+ ion.
    10-(4-(Bis(2-acetoxyethyl)amino)phenyl)-BODIPY 505/515
  • HY-D1262
    BODIPY-TS
    BODIPY-TS (Thiol-green 2) is a fast response and thiol-specific turn-on probe. BODIPY-TS utilizes the thiosulfonate scaffold as a thiol recognition unit. BODIPY-TS has low toxicity, and features high selectivity, low detection limit, and quantitative reaction to thiols. Ex: 490 nM; Em: 515 nM.
    BODIPY-TS
  • HY-D0026
    AMCA,SE
    AMCA,SE (7-Amino-4-methyl-3-coumarinacetic acid N-succinimidyl ester) is a bright blue fluorescent dye. AMCA,SE reacts with amino groups and is excited by ultraviolet light. AMCA,SE can be used for amine reactive labeling (Ex/Em = 354/440 nm).
    AMCA,SE
  • HY-D2175
    AF 555 NHS ester
    AF 555 NHS ester is a bright, orange-red fluorescence probe. AF 555 NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules (Ex/Em = 552/566 nm).
    AF 555 NHS ester
  • HY-N15900
    C11 BODIPY 505/515 MG
    		99.69%
    C11 BODIPY 505/515 MG is a fluorescently labeled glycerolipid (Ex/Em = 495/503 nm).
    C11 BODIPY 505/515 MG
  • HY-DY1015
    Dihydroethidium (solution)
    Dihydroethidium (solution) , also known as DHE, is a peroxide indicator. Dihydroethidium penetrates cell membranes to form a fluorescent protein complex with blue fluoresces. After entering the cells, Dihydroethidium is mainly localized in the cell membrane, cytoplasm and nucleus, and the staining effect is the strongest in the nucleus. Dihydroethidium produces inherent blue fluorescence with a maximum excitation wavelength of 370 nm and a maximum emission wavelength of 420 nm; after dehydrogenation, Dihydroethidium combines with RNA or DNA to produce red fluorescence with a maximum excitation wavelength of 300 nm and a maximum emission wavelength of 610 nm. 535 nm can also be used as the excitation wavelength for actual observation.
    Solvent and concentration: DMSO: 5 mM
    Dihydroethidium (solution)
  • HY-D1880
    Sulfo-Cy5 hydrazide
    Sulfo-Cy5 hydrazide is a fluorescent dye containing a hydrazide functionality (Ex/Em=646/662 nm).
    Sulfo-Cy5 hydrazide
  • HY-153232
    eGFP circRNA-LNP
    eGFP circRNA-LNP is a lipid nanoparticle (LNP) containing eGFP circRNA, suitable for assays of RNA delivery, translation efficiency, cell viability, etc. eGFP circRNA carries Enhanced Green Fluorescent Protein (Enhanced Green Fluorescent Protein) eGFP, which will express green fluorescent protein after entering the cell. eGFP is commonly used as a reporter gene detectable by fluorescence microscopy or flow cytometry.
    eGFP circRNA-LNP
  • HY-W440914
    DSPE-PEG1000-FITC
    DSPE-PEG1000-FITC is an amphiphile PEG polymer which has unsaturated lipid tails. The polymer can form micelles in an aqueous solution and can be used to prepare liposome/nano particles for drug nanocarriers. . Reagent grade, for research use only.
    DSPE-PEG1000-FITC
  • HY-W009411
    Dansyl hydrazine
    		99.98%
    Dansyl hydrazine is a carbohydrate-specific fluorescent dye (Ex/Em = 340 nm/525 nm). Dansyl hydrazine undergoes a condensation reaction with aldehyde groups generated by periodate oxidation on carbohydrate-containing structures to form fluorescent hydrazone compounds. Dansyl hydrazine selectively stains polysaccharides in formalin-fixed, paraffin-embedded human post-mortem brain tissues, revealing detailed structural features. Dansyl hydrazine is applicable to research related to Alzheimer's disease, Lafora disease, and polyglucosan body disease.
    Dansyl hydrazine
  • HY-145127
    ETZ
    		99.84%
    ETZ (C3-CA-DTZ) is a promising luciferase substrate (prosubstrate) activatable in vivo by nonspecific esterase to enhance the brain delivery of the luciferin.
    ETZ
  • HY-D1171
    Fluorescent brightener 220
    		98.0%
    Fluorescent brightener 220 is an optical brightener dye.
    Fluorescent brightener 220
  • HY-DY1007
    FITC (solution)
    FITC (Fluorescein Isothiocyanate) (solution) , is one of the green fluorescein derivatives widely used in biology. FITC has the characteristics of high absorptivity and excellent fluorescence quantum yield. The isothiocyanate group of FITC can be combined with amino, sulfhydryl, imidazole, tyrosyl, carbonyl and other groups on the protein, so as to achieve protein labeling including antibodies and lectins. In addition to its use as a protein marker, FITC can also be used as a fluorescent protein tracer to rapidly identify pathogens by labeling antibodies, or for microsequencing of proteins and peptides (HPLC). The maximum excitation wavelength of FITC is 494 nm. Once excited, it fluoresces yellow-green at a maximum emission wavelength of 520 nm. In addition, FITC is also a hapten that can induce contact hypersensitivity (CHS) and induce an atopic dermatitis model.
    Solvent and concentration: DMSO: 20 mM
    The 1 mL volume is defined as the base specification. All larger sizes correspond to incremental volumes of this base.
    FITC (solution)
  • HY-D1873
    800CW acid
    		98.81%
    800CW acid is an orally active near-infrared (NIR) dye (excitation/emission 774/789 nm). 800CW acid can be used for intestinal permeability testing. 800CW acid can be used for in vivo imaging studies.
    800CW acid
  • HY-D1557
    Cyanine5.5 tetrazine
    Cyanine5.5 tetrazine is a far-infrared luminescent dye. Cyanine5.5 tetrazine is a Cyanine5.5 (HY-D0925A) derivative contains a tetrazine moiety. Cyanine5.5 tetrazine can be used for in vivo imaging and low background applications. Cyanine5.5 tetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    Cyanine5.5 tetrazine
  • HY-125750
    Coumarin 7
    		99.80%
    Coumarin 7 is a coumarin laser dye in plants in the form of glycosides.
    Coumarin 7
  • HY-35556
    9-Aminophenanthrene
    		99.86%
    9-Aminophenanthrene is a type of polycyclic aromatic amine compound, which can be used as a fluorescent labeling reagent for free fatty acids (FFA).
    9-Aminophenanthrene
Cat. No. Product Name / Synonyms Application Reactivity