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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-D1269
    Rhodamine-N3 chloride
    		99.85%
    Rhodamine-N3 chloride is an azide-rhodamine fluorescent dye that can be used to label biomolecules containing alkyne groups. Rhodamine-N3 (chloride) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Rhodamine-N3 chloride
  • HY-D0832
    CY5-N3
    		99.71%
    CY5-N3 (Sulfo-Cyanine5-azide) is a Cy5-azide, which is a fluorescent dye. CY5-N3 is cell membrane permeable and can be used for live cell imaging. CY5-N3 can be used in cell imagine by Click reaction.
    CY5-N3
  • HY-100575
    Acriflavine
    		≥98.0%
    Acriflavine (Acriflavinium chloride) is a fluorescent acridine dye that can be used to label nucleic acid. Acriflavine is an antiseptic agent. Acriflavine is a potent HIF-1 inhibitor that prevents the dimerization of HIF-1α and HIF-1β subunits. Acriflavine inhibits the interaction between monocarboxylate transporter 4 (MCT4) and Basigin. Acriflavine is used in cancer research, such as breast cancer, brain tumor and chronic myeloid leukemia. Acriflavine is a potent papain-like protease (PLpro) inhibitor, which inhibits SARS-CoV-2.
    Acriflavine
  • HY-D1727
    CellTracker Red CMTPX
    CellTracker Red CMTPX is a cell-permeable fluorescent dye that can be used as a cell tracer for monitoring cell movement and location (Ex/Em=586/614 nm).
    CellTracker Red CMTPX
  • HY-111330
    Hydroxyphenyl Fluorescein
    		99.91%
    Hydroxyphenyl Fluorescein (HPF) is a stable ROS fluorescent probe dye. Hydroxyphenyl Fluorescein has stronger specificity and stability than H2DCFDA (HY-D0940). Hydroxyphenyl Fluorescein can produce strong green fluorescence through hydroxyl radical reaction with intracellular peroxynitroso. Hydroxyphenyl Fluorescein can be applied for fluorescence microscopy, high-throughput imager, luciferase microplate reader or flow cytometry. Ex/Em=490/515 nm.
    Hydroxyphenyl Fluorescein
  • HY-D1491A
    Fast Red Violet LB Zinc chloride
    		99.17%
    Fast Red Violet LB Zinc chloride is a stain that stains tartrate-resistant acid phosphatase (TRAP) and Fast Red Violet LB Zinc chloride can be used to stain alkaline phosphatase (ALP) activity.
    Fast Red Violet LB Zinc chloride
  • HY-D1670
    Z-Gly-Pro-AMC
    		99.80%
    Z-Gly-Pro-AMC is a fluorogenic substrate. Z-Gly-Pro-AMC is hydrolyzed by prolyl endopeptidase to generate highly fluorescent 7-amido-4-methylcoumarin (HY-D0027). (λex=380 nm, λem=465 nm).
    Z-Gly-Pro-AMC
  • HY-101891
    Di-8-ANEPPS
    		99.46%
    Di-8-ANEPPS is a naphthylstyryl voltage-sensitive dye, shifting both their fluorescence excitation and emission spectra upon changes in Vm .
    Di-8-ANEPPS
  • HY-130412
    FlAsH-EDT2
    		≥99.0%
    FlAsH-EDT2 is a protein labeling reagent. FlAsH-EDT2 binds to Cys4 with high affinity and emits fluorescence. FlAsH-EDT2 can cross the cell membrane and enter the interior of the cell. FlAsH-EDT2 can only be used for labeling proteins with high concentration.
    FlAsH-EDT2
  • HY-137834
    Gly-Pro-AMC hydrobromide
    		98.68%
    Gly-Pro-AMC hydrobromide is a fluorescent dye, it can be used as a specific fluorescent substrate for detecting Dipeptidyl peptidase IV (DPP-IV) activity.
    Gly-Pro-AMC hydrobromide
  • HY-101895
    Fluorescein di(β-D-galactopyranoside)
    		99.81%
    Fluorescein di(β-D-galactopyranoside) is a fluorogenic substrate for β-galactosidase (λex=485 nm, λem=535 nm).
    Fluorescein di(β-D-galactopyranoside)
  • HY-137276
    5-Bromo-3-indolyl β-D-galactopyranoside
    		99.73%
    5-Bromo-3-indolyl β-D-galactopyranoside (Bluo-Gal) is a chromogenic substrate for β-galactosidase. 5-Bromo-3-indolyl β-D-galactopyranoside is hydrolyzed by the enzyme to generate a 5-bromoindole intermediate, which is further oxidized to form an insoluble blue precipitate. 5-Bromo-3-indolyl β-D-galactopyranoside can specifically recognize bacterial β-galactosidases (such as the product of the Escherichia coli lacZ gene) and reacts at pH 7.4, making it suitable for light and electron microscopic observations. 5-Bromo-3-indolyl β-D-galactopyranoside can be used in histochemical detection of reporter gene expression in transgenic organisms, such as the localization analysis of β-galactosidase activity in mouse embryos or muscle tissues.
    5-Bromo-3-indolyl β-D-galactopyranoside
  • HY-D1617
    BODIPY 500/510 C1, C12
    		99.16%
    BODIPY 500/510 C1, C12 is a BODIPY dye. BODIPY dye is a small molecule dye with strong ultraviolet absorption ability, its fluorescence peak is relatively sharp, and the quantum yield is high. They are relatively insensitive to the polarity and pH of the environment and are relatively stable under different physiological conditions. Due to its structural asymmetry, BODIPY derives a variety of structural products. BODIPY lipid droplet dyes can well pass through the cell membrane into the cell, and localize the neutral lipids in the cell to specifically stain the lipid droplets, which can be used for labeling of live cells and fixed cells. Maximum excitation/emission wavelength: 500/510 nm. Protect from light, stored at -20℃.
    BODIPY 500/510 C1, C12
  • HY-D0001
    Alcian Blue 8GX
    Alcian Blue 8GX is a commonly used phthalocyanine dye that binds to glycoproteins and glycosaminoglycans. Alcian Blue 8GX has a wide range of applications in biological staining, including proteins in brain tumors and DNA in cells and tissues.
    Alcian Blue 8GX
  • HY-D1820
    Vari Fluor 594-Phalloidin
    Vari Fluor 594-Phalloidin is a fluorescent derivative of Phalloidin that specifically labels myofilament proteins and exhibits red fluorescence at 585/609 nm when labeled.
    Vari Fluor 594-Phalloidin
  • HY-D1094
    Carboxy-SNARF 1 (5/6-mixture)
    Carboxy-SNARF 1 (5/6-mixture) (SNARF 1) is a fluorescent probe that is sensitive to pH. Carboxy-SNARF 1 (5/6-mixture) can be used for measurement pH.
    Carboxy-SNARF 1 (5/6-mixture)
  • HY-136277
    DFHO
    		99.83%
    DFHO is a fluorogenic ligand of Corn fluorogenic aptamer. The RNA aptamer, Corn binds DFHO with a Kd value of 70 nM and converts it to a fluorescent form, enabling RNA imaging in cells.
    DFHO
  • HY-D1913
    FerroOrange
    		98.2%
    FerroOrange is a fluorescent probe for the detection of unstable divalent iron ions, localized in the endoplasmic reticulum, which emits irreversible orange fluorescence upon encountering divalent iron ions. Excitation/emission wavelength: 542/572 nm.
    FerroOrange
  • HY-D1068
    Cy5-DBCO
    		99.86%
    Cy5-DBCO (DBCO-Sulfo-Cy5) is a near-infrared (NIR)red fluorescent dye with λabsand λem of 646nm and 670 nm, respectively. Cy5-DBCO (DBCO-Sulfo-Cy5) is not suitable for staining intracellular components of permeabilezed cell, it may exhibits a high background. Cy5-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
    Cy5-DBCO
  • HY-D0169
    Phenol Red
    		≥98.0%
    Phenol red (Phenolsulfonephthalein) is a pH indicator dye, relying on a distinct color change from pink to yellow in case of a positive reaction .
    Phenol Red
Cat. No. Product Name / Synonyms Application Reactivity