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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-D1613
    BODIPY FL C5-HPC
    		99.43%
    BODIPY FL C5-HPC is a lipophilic green fluorescent dye (Ex/Em: 500/510 nm).
    BODIPY FL C5-HPC
  • HY-D1792
    Vari Fluor 555 SE
    Vari Fluor 555 SE (VF 555 SE) is a dye marker of the Vari Fluor SE series (Ex/Em=550 nm/561 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 555 SE
  • HY-153081
    eGFP circRNA
    The eGFP circRNA will express green fluorescent protein, originally isolated from the jellyfish, Aequorea victoria. The eGFP is a commonly used direct detection reporter in mammalian cell culture, yielding bright green fluorescence with an emission peak at 509 nm. The eGFP circRNA is therefore ideal for monitoring and optimizing transfection efficiency and is recommended as a positive control for circular RNA transfections.
    eGFP circRNA
  • HY-NP035
    Ovalbumin-FITC
    Ovalbumin-FITC is an ovalbumin conjugated to FITC (Ex=495 nm; Em=525 nm). Ovalbumin-FITC can be internalized by cells via endocytosis.
    Ovalbumin-FITC
  • HY-W110929
    Patent Blue V
    Patent Blue V (Acid blue 1) is a novel biological dye that can be used as an intraocular dye for retinectomy. Retinectomy refers to the removal of the translucent inner limiting membrane (ILM). The application of appropriate dyes in vitreoretinal surgery can achieve the purpose of complete removal. Patent Blue V can be used to stain retinal premembranous structures. Spectral analysis shows that Patent Blue V has strong absorption below 450 nm and above 600 nm, showing a blue-green color. Patent Blue V is also used as a marker in lymphangiography for resection of neoplastic lymph nodes.
    Patent Blue V
  • HY-D0202
    Arsenazo III
    Arsenazo III is a dye useful for detection of micromolar concentrations of ionized Ca2+. Arsenazo III can be used for determination of thorium, zirconium, uranium and rare earth elements.
    Arsenazo III
  • HY-D2294
    FD dye 7
    FD dye 7 (compound 7) is an intermediate of heptamethacyanine dye fluorescent dye and can be used to synthesize dyes FD-1 and FD-2.
    FD dye 7
  • HY-W040198
    Phenosafranine
    Phenosafranine is a phenazine dye. Phenosafranine has high binding affinity to triplex RNA compared to the parent duplex form, binds through intercalation to both forms of RNA. Phenosafranine can be used for staining plant cells, determination of hemoglobin, dopamine, serotonin and so on.
    Phenosafranine
  • HY-110257
    BDY FL-X, SE
    		99.62%
    BODIPY FL-X,SE is a fluorescent greendye for the labeling of amine, shows a high fluorescence quantum yield and is relatively insensitive to pH change. BODIPY FL-X,SE can be used as an alternative for FAM, Cy2 or FITC. λabs: 504 nm; λem:510 nm.
    BDY FL-X, SE
  • HY-W035051
    TSPP tetrasodium
    TSPP tetrasodium is a photosensitizer that has shown impressive effects in in vivo regression of cancer and microorganism infections (Ex: 413 nm, Em: 640 nm).
    TSPP tetrasodium
  • HY-W040254
    Biotin-LC-LC-NHS
    Biotin-LC-LC-NHS is a SMCC cross-linking reagent that can be used to mark antibody and other small molecules, such as Paclitaxel.
    Biotin-LC-LC-NHS
  • HY-W003112
    4-Fluororesorcinol
    		99.70%
    4-Fluororesorcinol is a precursor used in the preparation of fluorescent dyes or indicators such as fluorescein, coumarin and resorcinol analogues.
    4-Fluororesorcinol
  • HY-D1871
    Cy3 maleimide chloride
    		99.25%
    Cy3 maleimide chloride is a dye derivative of Cyanine 3 (Cy3) (HY-D0822) containing maleimide functional groups. Cy3 is a fluorescent dye with a fluorescence spectrum typically in the green to orange wavelength range. The alkyne functional group of Cy3 maleimide chloride can undergo a "thiol-acrylamide" reaction with molecules containing sulfur-oxygen functional groups to form covalent bonds. Cy3 maleimide chloride can bind to biological molecules such as proteins and antibodies to track their location and dynamic changes in biological samples.
    Cy3 maleimide chloride
  • HY-136936
    PYBG-BODIPY
    		98.27%
    PYBG-BODIPY is a dye and has a role as a fluorochrome. PYBG-BODIPY specifically and efficiently labels the target genetically encoded SNAP-tags in live cells.
    PYBG-BODIPY
  • HY-P4337A
    Dansyl-Gly-Cys-Val-Leu-Ser TFA
    		99.77%
    Dansyl-Gly-Cys-Val-Leu-Ser TFA is a dansyl-labeled peptide.
    Dansyl-Gly-Cys-Val-Leu-Ser TFA
  • HY-NP043
    Avidin-Cy3
    Avidin-Cy3 is Cy3-labeled Avidin. Avidin has excellent affinity with biotin and is often used in combination with biotin for immunoassays to detect the location of antigens in tissues.
    Avidin-Cy3
  • HY-D1590
    BODIPY Green 8-P2M
    		99.21%
    ODIPY Green 8-P2M is a novel thiol-reactive fluorescence probe based on the BODIPY fluorophore, the fluorescence is strongly quenched by d-PeT and then can be restored after reaction with thiol, resulting in an extremely high signal-to-noise ratio. ODIPY Green 8-P2M can be useful for detecting extremely low concentrations of protein in the gel after SDS-PAGE.
    BODIPY Green 8-P2M
  • HY-149836
    3-MeOARh-NTR
    		98.07%
    3-MeOARh-NTR is an activatable imaging probe with high selectivity, and good stability. 3-MeOARh-NTR possesses high selectivity and high signal-to-noise ratio for nitroreductase (NTR) detection, and serves as an efficient molecular tool for endogenous NTR detection.
    3-MeOARh-NTR
  • HY-125921
    WST-3
    		99.61%
    WST-3 is a water-soluble tetrazolium dye. In the presence of an electron mediator, WST-3 is reduced to WST-3 formazan by NADH and displays an absorption maxima of 433 nM.
    WST-3
  • HY-D0943
    Nuclear Fast Red
    Nuclear Fast Red, an anthraquinone dye, is commonly used in conjunction with an excess of aluminum ions as a red nuclear counterstain. Nuclear fast red has been used as a histochemical and colorimetric reagent for calcium. Nuclear fast red as highly sensitive "off/on" fluorescent probe for detecting guanine.
    Nuclear Fast Red
Cat. No. Product Name / Synonyms Application Reactivity