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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-D0445
    C.I. Pigment orange 16
    C.I. Pigment orange 16 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 orange 16
  • HY-D1097A
    Cyanine 3.18 TEA
    Cyanine 3.18 TEA belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
    Cyanine 3.18 TEA
  • HY-D2483
    Asante potassium green-1 TMA
    Asante potassium green-1 (APG-1) TMA is a cell-impermeable K+ (potassium) sensitive fluorescent indicator (excitation/emission = 525/545 nm).
    Asante potassium green-1 TMA
  • HY-D2376
    BH-Vis
    BH-Vis is a two-photon fluorescent probe that inhibits cell plasma membrane (CPM). BH-Vis has great potential to accurately identify pyroptosis at the cellular level during AAA development in the mouse abdominal aortic aneurysm AAA model.
    BH-Vis
  • HY-D0257R
    Tartrazine (Standard)
    Tartrazine (Standard) is the analytical standard of Tartrazine. This product is intended for research and analytical applications. Tartrazine is an azo acid dye, orange-yellow powder, soluble in water and turns yellow. It is mainly used as a synthetic lemon yellow azo dye for food coloring. It is the most stable colorant.
    Tartrazine (Standard)
  • HY-D0466
    Acid orange 51
    Acid orange 51 is an azo dye.
    Acid orange 51
  • HY-108715R
    Real Thiol (Standard)
    Real Thiol (Standard) is the analytical standard of Real Thiol (HY-108715). This product is intended for research and analytical applications. Real Thiol is a reversible reaction-based fluorescent probe which can quantitatively monitor the real-time glutathione dynamics in living cells.
    Real Thiol (Standard)
  • HY-D2669
    Cy5.5 HA biotin 3000
    Cy5.5 HA biotin 3000 is a biotinylated hyaluronic acid labeled with CY5.5 (HY-D0924). Cy5.5 HA biotin 3000 is widely used for cell imaging and in vivo imaging of shallow tissues (Ex/Em = 680/710 nm).
    Cy5.5 HA biotin 3000
  • HY-D2490
    Sulfo Cy5.5-N3
    Sulfo Cy5.5-N3 is a Sulfo Cy5.5-azide, which is a fluorescent dye. Sulfo Cy5.5-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 Cy5.5-N3
  • HY-D2707
    Cy3 Dextran (MW 5000)
    Cy3 Dextran (MW 5000) is a fluorescent labeling reagent that combines Cy3 (HY-D0822) fluorescent dye and Dextran (HY-112624). The Cy3 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Dextran has an inhibitory effect on thrombocyte aggregation and coagulation factors and is used as a plasma volume expander (Ex/Em = 550/570 nm).
    Cy3 Dextran (MW 5000)
  • HY-D0551
    C.I. Basic red 24
    C.I. Basic red 24 is an alkaline dye that can be removed from aqueous solutions in intermittent adsorption systems using tree ferns as biosorbents.
    C.I. Basic red 24
  • HY-D2854A
    FITC-PEG1000-CL
    FITC-PEG1000-CL 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-PEG1000-CL
  • HY-W800695
    BP Fluor 405 DBCO
    BP Fluor 405 DBCO is a blue-fluorescent dye that often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode. BP Fluor 405 DBCO reacts with azides via a copper-free click chemistry reaction to form a stable triazole and does not require a Cu-catalyst or elevated temperatures.
    BP Fluor 405 DBCO
  • HY-D0522
    Reactive orange 16
    Reactive orange 16 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive orange 16
  • HY-176913
    TA
    TA is an anthracene derivative with ultrasound-activated luminescence properties. TA can be activated by ultrasound and emit fluorescence. TA is generally not used directly but can be used to construct TA-NP nanoparticles. The ultrasound-activated luminescence of TA-NPs is mainly concentrated in the wavelength range of 600~650 nm, exhibiting good penetration ability into biological tissues, making it suitable for in vivo imaging.
    TA
  • HY-172333
    HCy-Lyso
    HCy-Lyso is a lysosome-targeting turn-on fluorescent probe based on hydrocyanine. HCy-Lyso integrates a hydrocyanine moiety for selective recognition of hydroxyl radicals (•OH) and a morpholine group for lysosome targeting. Upon reacting with •OH, HCy-Lyso undergoes an extension of its π-conjugation system, producing a strong fluorescence signal at 598 nm when excited at 510 nm.
    HCy-Lyso
  • HY-W784030
    N-TCO-L-lysine
    N-TCO-L-lysine is a non-canonical amino acid. N-TCO-L-lysine contains a trans-cyclooctene (TCO) bioorthogonal reactive linker. N-TCO-L-lysine undergoes a bioorthogonal click reaction with SiR-Tz to enable fluorescent labeling of endogenously expressed proteins with site-specific incorporation. When used in combination with SiR-Tz, N-TCO-L-lysine allows super-resolution and live-cell imaging of endogenous proteins.
    N-TCO-L-lysine
  • HY-107869R
    Isoindigo (Standard)
    Isoindigo (Standard) is the analytical standard of Isoindigo (HY-107869). This product is intended for research and analytical applications. Isoindigo acts as the acceptor unit in donor-acceptor (D-A) conjugated polymers and belongs to the indigo dye family. Isoindigo contains two lactam rings and exhibits strong electron-withdrawing properties. Isoindigo can be used in dyeing and pigment preparation. Isoindigo shows high mobility and excellent environmental stability in field-effect transistors (FETs). Isoindigo possesses the activity to inhibit tumor cell proliferation and has certain anti-tumor activity.
    Isoindigo (Standard)
  • HY-D0396
    C.I. Direct red 16
    C.I. Direct red 16 is a good dyeing agent for cotton fabrics.
    C.I. Direct red 16
  • HY-D0588
    Acid red 266
    Acid red 266 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.
    Acid red 266
Cat. No. Product Name / Synonyms Application Reactivity