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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-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-137296
    Lumogallion
    		99.73%
    Lumogallion is a highly sensitive fluorescent reagent for the detection of aluminum, gallium and other metals. Lumogallion has an excitation wavelength of 490 nm and an emission spectrum in the range of 520 nm to 650 nm, with a peak near 580 nm.
    Lumogallion
  • HY-D1742
    DRAQ5
    		Chemical
    DRAQ5 is a novel cell permeant and far red-fluorescing DNA probe. DRAQ5 excites at a wavelength of 647 nm, close to the Ex, and produces a fluorescence spectrum extending from 665 nm out to beyond 780 nm wavelengths. DRAQ5 fluorescence reflects cellular DNA content. DRAQ5 can be used in combination with FITC and RPE-labelled antibodies, without the need for fluorescence compensation.
    DRAQ5
  • HY-D0211
    Phenolphthalein
    		99.92%
    Phenolphthalein is an acid-base indicator that is colorless in an acidic environment and pink in an alkaline environment. Phenolphthalein is genotoxic and potentially carcinogenic to mice. In addition, phenolphthalein is also a blood indicator.
    Phenolphthalein
  • HY-D1080
    EDANS
    		99.95%
    EDANS (1,5-EDANS) is a novel and quenched fluorogenic substrate for assaying retroviral protease by resonance energy transfer (RET).
    EDANS
  • HY-D2171A
    AF488 DBCO ditriethylamine
    AF488 DBCO ditriethylamine is the ditriethylamine salt form of AF488 DBCO (HY-D2171). AF488 DBCO ditriethylamine is a fluorescent dye that labels azide-containing biomolecules. DBCO is the bioorthogonal partner of azide that allows covalent coupling in the absence of copper. AF488 is a bright, photostable green fluorophore. AF488 exhibits the λem and λex wavelength of 520 nm and 470 nm, respectively.
    AF488 DBCO ditriethylamine
  • HY-D1567
    Cy7.5 NHS ester
    Cy7.5 NHS ester is a fluorescent dye. Cy7.5 NHS ester can be conjugated to mPEG-b-PDPA to form a mPEG-b-PDPA-Cy7.5 fluorescent copolymer. Cy7.5 NHS ester can be used for fluorescent imaging study.
    Cy7.5 NHS ester
  • HY-D1082
    5-DTAF
    5-DTAF is a isomeric fluorescein derivative that directly react with polysaccharides and other alcohols in aqueous solution at pH ＞ 9. The maximum of the 5-DTAF emission profile is at a wavelength of 518 nm after excitation at 488 nm.
    5-DTAF
  • HY-W009756
    N-Phenylnaphthalen-1-amine
    N-Phenylnaphthalen-1-amine is a fluorescence probe for odorant-binding proteins (OBP) with a dissociation constant of 1.67 μM. N-Phenylnaphthalen-1-amine exhibits an excitation wavelength of 337 nM and an emission wavelength of 407 nM.
    N-Phenylnaphthalen-1-amine
  • HY-D0022
    5-Aminofluorescein
    		99.79%
    5-Aminofluorescein (5-AF) is a fluorescence marker, covalently bound to human serum albumin. The excitation wavelength is 495 nm and the emission wavelength is 535 nm.
    5-Aminofluorescein
  • HY-D0935A
    4-Methylumbelliferyl-β-D-glucuronide hydrate
    		99.92%
    4-Methylumbelliferyl-β-D-glucuronide hydrate is a fluorogenic substrat (λex=362 nm, λem=445 nm). 4-Methylumbelliferyl-β-D-glucuronide hydrate has potential applications in detecting the activity of β-glucuronidase and the number of Escherichia coli.
    4-Methylumbelliferyl-β-D-glucuronide hydrate
  • 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-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-110213
    BODIPY 630/650X
    		99.24%
    BODIPY 630/650X is a fluorescent conjugate of the adenosine receptor ligand N-ethylcarboxamido-adenosine (NECA). BODIPY 630/650X displays excitation/emission maxima of 630/650 nm, respectively.
    BODIPY 630/650X
  • HY-15940
    5(6)-Carboxyfluorescein
    		99.66%
    5(6)-Carboxyfluorescein (5(6)-FAM) is an amine-reactive pH-sensitive green fluorescent probe. 5(6)-Carboxyfluorescein (5(6)-FAM) can be used to label proteins, peptides and nucleotides. 5(6)-Carboxyfluorescein can be used for the detection of tumour areas in vivo.
    5(6)-Carboxyfluorescein
  • HY-152073
    BETA-1
    		98.76%
    BETA-1 is the first twisted intramolecular charge transfer (TICT)-aggregation-induced emission (AIE) integration molecule. BETA-1 emits cyan fluorescence in lipid droplets (LDs) and red fluorescence in mitochondria. BETA-1 can be used for the simultaneous and dual-color imaging of LDs and mitochondria in vivo and in vitro.
    BETA-1
  • HY-D1627
    CellTracker CM-DiI
    		≥98.0%
    CellTracker CM-DiI (CM-DiI) is a lipophilic fluorochrome that can be used for tracking the migration of lymphocytes. CellTracker CM-DiI is feasible to detect labeled cells in histological sections (excitation 553 nm; emission 570 nm).
    CellTracker CM-DiI
  • HY-D1117
    NADA-green
    NADA-green is a fluorescent D-amino acid probe. NADA-green is efficiently incorporated into the peptidoglycan of diverse bacterial species peptidoglycan biosynthesis. NADA-green allows probing of bacterial growth with minimal perturbation.
    NADA-green
  • 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-118462
    Coelenteramine 400a
    		99.70%
    Coelenteramine 400a (Coelenterazine 400a), a derivative of Coelenterazine, is a Renilla luciferase (RLuc) substrate. In the presence of Coelenteramine 400a, RLuc can emit blue light at 395 nm. Coelenterazine 400a will causes color change in the bioluminescence reaction of Rluc by replacing the sulfur and oxygen heteroatoms of the methylene bridge. Coelenterazine 400a provides higher signal resolution and can be used in the research of bioluminescence resonance energy transfer (BRET).
    Coelenteramine 400a
Cat. No. Product Name / Synonyms Application Reactivity