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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-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-P1003
    Ac-DEVD-AMC
    		99.93%
    Ac-DEVD-AMC is a fluorescent substrate of caspase-3/caspase-7. When treating Ac-DEVD-AMC with cell lysate, Ac-DEVD-AMC releases amino-4-methylcoumarin (AMC) for fluorescence detection, with an excitation wavelength of 380 nm and an emission wavelength of 460 nm.
    Ac-DEVD-AMC
  • 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-15942
    5-TAMRA
    		99.25%
    5-TAMRA can produce bright, pH-insensitive orange-red fluorescence (excitation and emission extremes of 546/579) and has good photostability. 5-TAMRA is mainly used as a fluorescent marker for the synthesis and study of specific oligonucleotide probes.
    5-TAMRA
  • HY-P0019A
    Z-Gly-Gly-Arg-AMC acetate
    		99.87%
    Z-Gly-Gly-Arg-AMC acetate is a thrombin-specific fluorogenic substrate for testing of thrombin generation in PRP and platelet-poor plasma (PPP) (Ex/Em = 390/480 nm).
    Z-Gly-Gly-Arg-AMC acetate
  • HY-B1335
    Pentetic acid
    		≥98.0%
    Pentetic acid (Diethylenetriaminepentaacetic acid) is an orally active compound with biodegradability used to construct magnetic adsorbent, which can simultaneously remove heavy metal and dye from complex wastewater. Pentetic acid can form strong metal complexes, which prevents metal ions from catalysing the decomposition of peroxygen chemicals, especially hydrogen peroxide.
    Pentetic acid
  • 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 (Ex/Em = 544/576 nm).
    Rhodamine-N3 chloride
  • 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-D0832
    CY5-N3
    		99.71%
    CY5-N3 (Sulfo-Cyanine5-azide) is a Cy5-azide, which is a fluorescent dye (ex/em: 646/662 nm). 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-D0819A
    CY5-SE triethylamine salt
    		≥98.0%
    Cy5-SE (Cy5 NHS Ester) triethylamine salt is a reactive dye for the labeling of amino-groups in peptides, proteins, and oligonucleotides. Cy5-SE triethylamine salt is ideal for very cost-efficient labeling of soluble proteins, as well as all kinds of peptides and oligonucleotides Ex=649 nm; Em=670 nm).
    CY5-SE triethylamine salt
  • 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
  • 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 (Ex: 488 nm). Carboxy-SNARF 1 (5/6-mixture) can be used for measurement pH. Carboxy-SNARF 1 (5/6-mixture) exhibits a significant emission shift from yellow-orange (Em: 580 nm) to deep red fluorescence (Em: 640 nm) under acidic and basic conditions (pH=7-8), respectively.
    Carboxy-SNARF 1 (5/6-mixture)
  • HY-136626
    Z-Ala-Ala-Asn-AMC
    		99.43%
    Z-Ala-Ala-Asn-AMC (Cbz-Ala-Ala-Asn-AMC) is the legumain substrate. Overexpressed legumain in 293 HEK-Leg cells potently cleaved CBZ-Ala-Ala-Asn-AMC.
    Z-Ala-Ala-Asn-AMC
  • HY-D1837
    Vari Fluor 488 TSA（200×）
    Vari Fluor 488 TSA（200×） (VF 488 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 488 TSA（200×）
  • HY-126823
    Phen Green SK diacetate (5/6-mixture)
    Phen green SK (PGSK) diacetate (PGSK diacetate (5/6-mixture)) is a metal ion-sensitive fluorescent probe that can penetrate cell membranes. Phen green SK (PGSK) diacetate can react with a variety of metal ions, including Fe2+, Cd2+, Co2+, Ni2+, Zn2+, etc. Phen green SK (PGSK) diacetate chelates Fe2+, resulting in fluorescence quenching, which can be restored when a membrane-permeable chelator is added, thereby reflecting the changes in the intracellular chelatable iron pool. The excitation/emission maxima of Phen green SK diacetate are 507/532 nm, respectively.
    Phen Green SK diacetate (5/6-mixture)
  • 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-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
  • 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
Cat. No. Product Name / Synonyms Application Reactivity