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  3. 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-D0947
    Azure A chloride
    Azure A (chloride) is a phenothiazine dye. Azure A (chlorine) is formed by oxidation of methylene blue and has strong metachromatic. Azure A (chlorine) can be used for the study of stains and redox media for electrochemical biosensing.
    Azure A chloride
  • HY-W088089
    ICG-carboxylic acid
    99.85%
    ICG-carboxylic acid is near-infrared (NIR) fluorescent probe. ICG is a fluorescent dye used in medical diagnostics. ICG has absorption peaking at 800 nm and can absorb the near IR laser energy and release heat in the dyed tissue (Ex/Em = 785/810 nm).
    ICG-carboxylic acid
  • HY-159529
    DBCO-PEG4-Eosin 5-isothiocyanate
    DBCO-PEG4-Eosin 5-isothiocyanate is a fluorescent probe. DBCO-PEG4-Eosin 5-isothiocyanate contains a clickable functional group, DBCO, and four PEG units. DBCO-PEG4-Eosin 5-isothiocyanate can be used for various imaging detections.
    DBCO-PEG4-Eosin 5-isothiocyanate
  • HY-150145A
    Cy5-UTP sodium (10mM in Water)
    99.26%
    Cy5-UTP sodium (10mM in Water) is a cyanine5-labeled UTP analogue that can produce fluorescent probes in vitro transcription reactions with excitation/emission wavelengths of 650/665 nm. Cy5-UTP sodium can be used in FISH, polychromatic fluorescence analysis, especially the two-color expression array combined with Cy5-UTP.
    Cy5-UTP sodium (10mM in Water)
  • HY-D1118
    BODIPY 576/589
    BODIPY 576/589 is a long wavelength biological labeled dye contains a free COOH-group (Em/Ex = 589/576 nm).
    BODIPY 576/589
  • HY-135368
    8pyDTZ
    ≥98.0%
    8pyDTZ is a pyridyl diphenylterazine (DTZ) analog and an ATP-independent pyridyl substrate of LumiLuc luciferase. 8pyDTZ exhibits spectrally shifted emission. 8pyDTZ has excellent biocompatibility and superior in vivo sensitivity. 8pyDTZ can be used for in vivo luminescence imaging.
    8pyDTZ
  • 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-D2119
    CQ-Lyso
    98.95%
    CQ-Lyso is a lysosome-targeting chromenoquinoline. CQ-Lyso is a fluorescent probe for measuring the pH of lysosomes in living cells using only single wavelength excitation. CQ-Lyso can visualize the dynamic pH changes in lysosomes.
    CQ-Lyso
  • HY-12489
    Ponceau S
    ≥98.0%
    Ponceau S (Acid Red 112) is a non-specific protein dye commonly used as a stain for Western blot. Ponceau S is used in an acidic aqueous solution that is compatible with antibody-antigen binding and dyes the proteins on the membrane red.
    Ponceau S
  • HY-15909
    BCIP
    99.93%
    BCIP(BCIP p-toluidine salt; X-phosphate p-toluidine salt) is an artificial chromogenic substrate used for the sensitive colorimetric detection of alkaline phosphatase activity.
    BCIP
  • HY-D0784
    5-ROX
    98.68%
    5-ROX (5-Carboxy-X-rhodamine), a rhodamine dye, exhibits strong fluorescence property in aqueous buffer with the λexit of 580 nm (ε=3.6×104 M-1 cm-1), and λemit of 604 nm (=0.94).
    5-ROX
  • HY-D0169A
    Phenol Red sodium salt
    Phenol red (Phenolsulfonephthalein) sodium salt is a pH indicator dye. Phenol Red sodium salt is also an antagonist of rat P2X1R. Phenol Red sodium salt enhances the halogenating activity of myeloperoxidase. Phenol Red sodium salt shows a distinct color change from pink to yellow in a positive pH reaction.
    Phenol Red sodium salt
  • HY-108715A
    RT-AM
    98.07%
    RT-AM is a pro-agent real thiol. Real Thiol is a reversible reaction-based fluorescent probe which can quantitatively monitor the real-time glutathione dynamics in living cells.
    RT-AM
  • HY-D0981
    7-Amino-4-(trifluoromethyl)coumarin
    99.30%
    7-Amino-4-(trifluoromethyl)coumarin (Coumarin 151) is a fluorescent marker for the sensitive detection of proteinases. The excitation and emission wavelengths are 400 and 490 nm, respectively.
    7-Amino-4-(trifluoromethyl)coumarin
  • HY-114353
    BDP FL azide
    99.71%
    BDP FL azide is a BDP dye connector containing an azide group capable of Click Chemistry. The green fluorophore is representative of the borodipyrromethane class of fluorescent dyes and has a high quantum yield in aqueous environments, high stability to photobleaching and is compatible with FAM fluorescence measurement instruments.
    BDP FL azide
  • HY-141729
    Biotin-NH-PSMA-617
    98.77%
    Biotin-NH-PSMA-617 is a biotin-tagged PSMA-617. PSMA-617 is a small molecule targeting the prostate-specific membrane antigen (PSMA), which is directly expressed by the tumor cells .
    Biotin-NH-PSMA-617
  • HY-D1602
    BODIPY FL-DHPE
    BODIPY FL DHPE is a green-fluorescent phospholipid probe. BODIPY FL DHPE labels lipid 1,2-dihexadecanoyl-sn-glycero-phosphoethanolamine (DHPE), labeled liposomes can be internalized by membrane fusion. BODIPY FL DHPE can be used for investigations of membrane surface and membrane fusion. (λex=505 nm, λem=511 nm).
    BODIPY FL-DHPE
  • HY-158082A
    TRITC-dextran, MW 20000
    TRITC-dextran, MW 20000 (Tetramethyl rhodamine isothiocyanate glucan, MW 20000) is a fluorescent dye, with the molecular weight of 20 kD. TRITC-dextran MW 20000 exhibits an excitation wavelength of 555 nm. TRITC-dextran MW 20000 is vessel penetrate, which could label blood plasma to visualize the vasculature. TRITC-dextran MW 20000 is utilized in drug delivery for the stability of TRITC over a wide pH range (i.e. pH 2–11) and resistance to photo-bleaching.
    TRITC-dextran, MW 20000
  • HY-NP062
    Bovine Serum Albumin-Cy5.5
    ≥98.0%
    Bovine Sermu Albumin-Cy5.5 is Cy5.5-labeled Bovine Sermu Albumin (BSA, HY-D0842).
    Bovine Serum Albumin-Cy5.5
  • HY-N0335
    Indigo
    ≥98.0%
    Indigo is a blue dye. Indigo stains cellulose fibers such as cotton. Indigo stains food or biological samples to visualize and quantify the uptake or distribution of substances by organisms.
    Indigo
Cat. No. Product Name / Synonyms Application Reactivity