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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-16045
    Hexaminolevulinate hydrochloride
    		99.88%
    Hexaminolevulinate (Hexyl 5-aminolevulinate) hydrochloride, a porphyrin precursor, is a photosensitiser that can be used in photodynamic therapy (PDT) for certain tumor. Hexaminolevulinate hydrochloride can improve the visualisation of bladder tumours.
    Hexaminolevulinate hydrochloride
  • HY-W026772
    Fluorene
    		99.35%
    Fluorene is an orally active polycyclic aromatic hydrocarbon (PAH) and a precursor to other fluorene-based compounds. Fluorene and its derivatives serve as dye precursors for fluorene synthesis. In A549 cells, Fluorene induces oxidative stress and inflammatory responses by increasing ROS and SOD generation, exacerbating lipid peroxidation, modulating antioxidant enzyme activity, and upregulating the expression of pro-inflammatory factors TNF-α and IL-6. In vivo, Fluorene exhibits anxiolytic activity. Fluorene holds potential for research in inflammation and neurological disorders.
    Fluorene
  • HY-151813
    NNMT-IN-4
    		99.35%
    NNMT-IN-4 (compound 38) is a selective, uncompetitive and membrane permeability nicotinamide N-methyltransferase (NNMT) inhibitor with IC50 values of 42 and 38 nM in vitro biochemical and cell-based assays, respectively. NNMT-IN-4 shows favorable PK/PD and safety profiles as well as excellent oral bioavailability and pharmaceutical properties. NNMT-IN-4 can be used as a vivo chemical probe of NNMT.
    NNMT-IN-4
  • HY-D0215
    Safranin
    Safranin (Safranin T) is an important and classical phenazinium dye. Safranin has been extensively used in the academic field as a spectroscopic probe and indicator. Safranin possesses a planar structure and cationic charge. Safranin can readily intercalate into biological macromolecules, including DNA and proteins. Safranin has antibacterial effects against gram-positive bacteria (S. aureus). Safranin can be used as a redox indicator in the determination of metal ion concentration.
    Safranin
  • HY-143702
    Fluorescent DOTAP
    Fluorescent DOTAP (NBD-DOTAP) is a cationic lipid which can be used for nucleic acid and protein delivery. Fluorescent DOTAP is labeled with a fluorophore NBD (maximum excitation/emission wavelength ∼463/536 nm). Fluorescent DOTAP can be used for gene delivery systems, drug delivery, as well as cell imaging and nanocarrier tracking. Fluorescent DOTAP is an ideal candidate for both biological and pharmaceutical formulation (e.g. co-delivery of vaccines) research.
    Fluorescent DOTAP
  • HY-DY1020
    Rhod-2 AM (solution)
    Rhod-2 (solution) is a high-affinity visible light excitation wavelength Ca2+ fluorescent probe, Rhod-2, AM is an acetyl methyl ester derivative of Rhod-2, which has cell membrane permeability and can easily enter cells with simple culture. Once it enters the cell, it is sheared by its lactesterase to produce Rhod-2 without membrane permeability, which remains in the cell to perform the corresponding physiological functions. Maximum excitation/emission wavelength: 549/578 nm.
    Solvent and concentration: DMSO: 1 mM
    Rhod-2 AM (solution)
  • HY-W020086
    2,3-Diaminophenazine
    		99.84%
    2,3-Diaminophenazine (2,3-Phenazinediamine) is an orally active amino derivative of phenazine. 2,3-Diaminophenazine can intercalate into DNA. 2,3-Diaminophenazine triggers photochemical reactions. 2,3-Diaminophenazine inhibits vascular hypertrophy and tissue AGE deposition in diabetic rats. 2,3-Diaminophenazine can be used for luminescence and diabetes research.
    2,3-Diaminophenazine
  • HY-W040230
    Acrylodan
    Acrylodan, reacted with thiols, is sensitive to the local environmental dipolarity and dynamics within the binding pocket surrounding Cys34.
    Acrylodan
  • HY-D1831
    Vari Fluor 620 TSA (200×)
    Vari Fluor 620 TSA (200×) (VF 620 Tyramide) is a fluorescent probe belonging to the Vari Fluor TSA series. Vari Fluor TSA series fluorescent probes can be used for high-density in situ labeling of target antigens using horseradish peroxidase (HRP) assays, which are widely used in ELISA, IF, IHC and other techniques with high detection sensitivity.
    Vari Fluor 620 TSA (200×)
  • HY-122009
    Indican
    		99.88%
    Indican (Indoxyl-β-D-glucoside), a glycoside of indoxyl, is a precursor of the dyesindigo and indirubin. Indican has a major metabolite, indoxyl sulfate (IS). IS, an uremic toxin, is a substrate/inhibitor of organic anion transporter (OAT) 1, OAT 3 and multidrug resistance-associated protein (MRP) 4.
    Indican
  • HY-101900
    Nile Blue A sulfate
    		98.0%
    Nile Blue A (Nile blue sulfate) is used to differentiate melanins and lipofuscins. It is also useful for staining fats and preparation of an amperometric glucose sensor.
    Nile Blue A sulfate
  • HY-101937B
    L-ANAP hydrochloride
    		99.89%
    L-ANAP hydrochloride is a genetically encodable and polarity-sensitive fluorescent unnatural amino acid (Uaa).
    L-ANAP hydrochloride
  • HY-D2208
    SYTM Green
    SYTM Green is a cell impermeant DNA dye that fluoresces green by binding to dsDNA (Ex/Em=503/530 nm). SYTM Green can also be used to stain bacteria, including Gram-positive and Gram-negative bacteria. Note: SYTM Green cannot penetrate living cells, and this product is equivalent to (Ex/Em=488/530 nm).
    SYTM Green
  • HY-133852A
    FD-1080 free acid
    FD-1080 free acid is a fluorophore with both excitation and emission in the NIR-II region (Ex=1064 nm, Em=1080 nm). FD-1080 free acid can be used for in vivo imaging.
    FD-1080 free acid
  • HY-D1605
    BODIPY FL L-Cystine
    		99.14%
    BODIPY FL L-Cystine is a thiol-reactive, green-fluorescent dye. BODIPY FL L-Cystine can be the labeling of membrane proteins, proteins with hydrophobic binding sites, or hydrophobic ligands. (λex=504 nm, λem=511 nm).
    BODIPY FL L-Cystine
  • HY-107967
    Isosulfan blue
    		99.81%
    Isosulfan blue is a blue dye for the identification of lymph vessels during lymphangiography. Isosulfan blueis is used during sentinel lymph node biopsies in breast cancer. Isosulfan blue is possible to have an allergic reaction during breast cancer operations.
    Isosulfan blue
  • HY-131013
    GSHtracer
    		99.04%
    GSHtracer is a ratiometric probe for measuring of GSH levels. GSHtracer exhibits Ex/Em from 520/580 nm to 430/510 nm (upon GSH binding) .
    GSHtracer
  • HY-D1610
    BODIPY FL C5
    		99.59%
    BODIPY FL C5 is a green fluorescent fatty acid. BODIPY FL C5 can be used as a precursor for the synthesis of various fluorescent phospholipids. BODIPY FL C5 is relatively insensitive to the environment and fluoresces in both water-soluble and lipid environments.
    BODIPY FL C5
  • HY-D1833
    Vari Fluor 680 TSA (200×)
    Vari Fluor 680 TSA (200×) (VF 680 Tyramide) is a fluorescent probe belonging to the Vari Fluor TSA series. Vari Fluor TSA series fluorescent probes can be used for high-density in situ labeling of target antigens using horseradish peroxidase (HRP) assays, which are widely used in ELISA, IF, IHC and other techniques with high detection sensitivity.
    Vari Fluor 680 TSA (200×)
  • HY-D1323
    Cyanine5.5 maleimide chloride
    		98.09%
    Cyanine5.5 maleimide chloride is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    Cyanine5.5 maleimide chloride
Cat. No. Product Name / Synonyms Application Reactivity