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Dye Reagents

A dye is a colored substance that has an affinity for the substrate applied to it. Based on selective fluorescent staining with Nile red (NR), and then density extraction and filtration, a new method for the analysis of microplastics in environmental samples was proposed. Dyes stick to plastic surfaces and fluoresce when irradiated with blue light. Fluorescence emission was detected by simple photographic examination of an orange filter. Image analysis allows the identification and counting of fluorescent particles. The enlarged image can be recorded and tiled to cover the entire filter area, thus detecting particles of a few microns. The discoloration properties of Nile red also provide the possibility of plastic classification based on the surface polar characteristics of the recognized particles. Anthocyanin dye can be used to quantify the amount of dsDNA in the sample. The linearity of fluorescence was obtained by measuring the fluorescence intensity at the optimal excitation and emission maxima as a function of the DNA amount of the six dyes. Targetmol provides dye reagents, which are widely used in fluorescent labeling and biochemical detection, and is committed to providing high-quality reagent products and services for life science research.

FilterHomeDye Reagents
MitoSOX Red
T753421003197-00-9In house
MitoSOX Red is a novel fluorescent probe that is specific and cell membrane-permeable and targets mitochondria in living cells.MitoSOX Red is oxidized by superoxide upon entry into the mitochondria and is not oxidized by other ROS or RNS-generating systems.MitoSOX Red then binds to nucleic acids in the mitochondrion and produces a strong red fluorescence.MitoSOX Red can be used as a fluorescent indicator for the specific detection of superoxide.MitoSOX Red can be used as a fluorescent indicator for the specific detection of superoxide. MitoSOX Red can be used as a fluorescent indicator to specifically detect superoxide. Superoxide dismutase (SOD) prevents the oxidation of MitoSOX Red.
  • $420
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D-Luciferin potassium
T4139115144-35-9
D-Luciferin potassium (D-Luciferin K Salt) is a popular bioluminescent substrate of luciferase in the presence of ATP.
  • $41
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2-NBDG
T14017186689-07-6
2-NBDG is a fluorescent indicator for direct glucose uptake measurement. It is an indicator of cell viability.
  • $37
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DIDS sodium salt
T1897567483-13-0In house
DIDS sodium salt (MDL101114ZA) is a dual inhibitor of the proteins ABCA1 and VDAC1.
  • $33
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FM4-64
T23409162112-35-8
FM4-64 (SynaptoRedTM C2) is a styryl dye that stains stably but does not fluoresce in aqueous solution.FM4-64 does not passively diffuse into the plasma membrane bilayer and must be actively transported across the membrane.FM4-64 can be used to study cytotoxicity, cytosolization, and vesicular transport.Cephalexin monohydroxylin monohydroxylin (Cephalexin monohydroxylin) can be used to study cytotoxicity and vesicular transport.
  • $337
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AkaLumine hydrochloride
T189142558205-28-8
AkaLumine hydrochloride is a fluorescein analog with a Km value of 2.06 μM for recombinant fluorescent protein.
  • $93
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WST-8
T4018193149-74-5
WST-8 is a water-soluble tetrazolium dye, and WST-8-based assays have higher sensitivity than traditional MTS-based assays.
  • $50
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Cy5.5
TD00911449612-07-0
Cy5.5 is a near-infrared fluorescent dye for labeling biomolecules such as peptides, proteins and oligonucleotides (Ex=673 nm, Em=707 nm)[2].
  • $48
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JC-1
T156093520-43-2
JC-1 (CBIC2) is a fluorescent lipophilic carbocyanine dye. It has been used to measure mitochondrial membrane potential. JC 1 can be used in a probe for measuring mitochondrial membrane potential by flow cytometry.
  • $59
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Copper probe CF4
T310082365532-64-3In house
Copper probe CF4 (Copper fluor CF4) is a fluorescent copper probe that can be used to study colon cancer.
  • $165 TargetMol
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AMI5
T217817372-87-1
AMI5 (Eosin Y Disodium) is a soluble acidic red dye molecule. It is commonly used as a photoredox catalyst in organic synthesis.
  • $30
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CFSE
T6802150347-59-4
CFSE (CFDA-SE) is a fluorescent dye with cell membrane permeability. CFSE irreversibly binds to intracellular proteins in living cells and is used for the detection of cell proliferation. The labeled cells fluoresce in green color with excitation wavelength of 488 nm and emission wavelength of 518 nm.
  • $52
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Biotinyl tyramide
T1920941994-02-9
Biotinyl tyramide, a biotin derivative, is used for tyramide signal amplification, as a reagent to amplify both in situ hybridization and immunohistochemical signals protocols.
  • $61
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FITC-Dextran (MW 10000)
T1898860842-46-8
FITC-Dextran (MW 10000) is a marker (10 kDa) formed by coupling FITC to dextran. FITC-Dextran is a labeled polysaccharide composed of branched glucose molecules of various lengths, enabling the determination of solute, ionic, and protein permeability of the blood-brain barrier depending on the size of the dextran used.
  • $32
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BODIPY 493/503
T36957121207-31-6
BODIPY 493 503 (Pyrromethene 546) is a lipophilic fluorescent probe with Ex Em of 493 503 nm. BODIPY 493 503 localizes to polar lipids and can be used to label cellular neutral lipid contents and for live and fixed cell applications.
  • $30
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NSP-SA-NHS
T19040199293-83-9
NSP-SA-NHS is a chemiluminescent acridinium ester that can be used for immunoassays.
  • $89
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H2DCFDA
T154584091-99-0
H2DCFDA (DCFH-DA) belongs to the class of green fluorescent dyes and is a probe for the detection of intracellular reactive oxygen species (ROS) (Ex Em=488 525 nm) with cell membrane permeability.
  • $37
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D-Luciferin Sodium
T19743103404-75-7
D-Luciferin Sodium is a heterocyclic light-emitting compound and natural ligand for luciferase used to detect cell activity. The salt form of luciferin dissolves in water or other typical buffers.
  • $43
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Coelenteramine 400a
T7838970217-82-2
Coelenteramine 400a (Coelenterazine 400a), a Coelenterazine derivative, serves as a substrate for Renilla luciferase (RLuc), facilitating the emission of blue light at 395 nm [1] [2]. This compound alters the bioluminescence color of RLuc by substituting the sulfur and oxygen heteroatoms in the methylene bridge. Coelenteramine 400a enhances signal resolution, proving useful in bioluminescence resonance energy transfer (BRET) research [3].
  • $158
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WSP-1
T365111352750-34-5
WSP-1 is a selective 2-pyridyl disulfide fluorescent probe for hydrogen sulfide detection and bioimaging.
  • $58
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Propidium Iodide
T213025535-16-4
Propidium Iodide (PI) is a red fluorescent dye utilized for cell staining and is suitable for fluorescence microscopy, confocal microscopy, flow cytometry, and fluorometer analysis. In aqueous solution, the Ex Em of PI is 493 636 nm. Upon binding with nucleic acid, the Ex Em shifts to 535 617 nm, enhancing the fluorescence signal 20-30 times.
  • $39
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Sulfo-NHS-SS-Biotin sodium
T19061325143-98-4
Sulfo-NHS-SS-Biotin sodium (Sulfosuccinimidyl 3-[[2-(biotinamido)ethyl]dithio]propionate) is a cell-impermeant and long-chain cleavable amine-reactive biotinylation reagent. It can be used for the labeling and purifying of cell-surface protein.
  • $33
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Dihydrorhodamine 123
T18977109244-58-8
Dihydrorhodamine 123 (DHR 123) is a fluorescent probe with excitation (λex=488 nm) and emission (λem=525 nm) wavelengths.
  • $59
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C12FDG
T78393138777-25-0In house
C12FDG (5-Dodecanoylaminofluorescein di-beta-D-Galactopyranoside) is used as a lipophilic green fluorescent substrate for detecting beta-galactose activity, a green fluorescent substrate, is a senescence marker and is often used in conjunction with flow cytometry.
  • $299
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DAPI Dihydrochloride
T1982728718-90-3
DAPI Dihydrochloride (FxCycle Violet) is a cell-permeable fluorescent probe by binding in the minor grove of A-T rich sequences of DNA, used to stain DNA and chromosomes, with a preference for adenine and thymine rich DNA.
  • $35
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CY7
T18956943298-08-6
CY7 (Sulfo-Cyanine7) is a fluorescence labeling agent (Ex=750 nm, Em=773 nm). Cy7 is used for labeling oligonucleotides, antibodies, peptides, and proteins.
  • $68
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MQAE
T3592162558-52-3
MQAE, a fluorescent chloride ion indicator, is more sensitive and selective than 36Cl and microelectrode-based methods for chloride measurement in cells. MQAE is quenched via collision with chloride.
  • $36
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BODIPY FL prazosin
T63980175799-93-6In house
BODIPY FL prazosin is a fluorescent α1-adrenergic antagonist with binding affinities of Ki: 14.5 nM for α1a-AR and Ki: 43.3 nM for α1b-AR, used to study subcellular localization differences in α1-adrenoceptor subtypes.
  • $293 TargetMol
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Dihydroethidium
T2021104821-25-2
Dihydroethidium (PD-MY 003) is a peroxide indicator with blue fluorescence in the cytoplasm (λex=518 nm, λem=616 nm), which disappears when oxidized and is cell permeable.
  • $30
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FITC
T152843326-32-7
FITC (Fluorescein 5-isothiocyanate) is a derivative of fluorescein for the labeling of amines.
  • $42
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BAPTA-AM
T6245126150-97-8
BAPTA-AM is a calcium chelator that is cell-permeable and selective, blocking hERG, hKv1.3, and hKv1.5 channels (IC50=1.3 1.45 1.23 μM). BAPTA-AM has a 105-fold higher affinity for Ca2+ than for Mg2+, and can be used for the role of calcium in cell signaling.
  • $30
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BODIPY 581/591 C11
T39652217075-36-0In house
BODIPY 581 591 C11 is a fluorescent radioactive probe used to indicate lipid peroxidation and antioxidant efficacy in model membrane systems and living cells.
  • $237
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ER-Tracker Green
T40842730931-46-1
ER-Tracker Green (ERTG) is a cell permeable live cell stain for live cell imaging.ER-Tracker Green has an excitation wavelength of 504 nm and an emission wavelength of 511 nm.
  • $116
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Hoechst 33342
T584023491-52-3
Hoechst 33342 (bisBenzimide H 33342), is a Benzimidazole fluorescent dye and a Cell permeable fluorescent DNA stain; binds minor groove of AT-rich regions. HOE 33342 trihydrochlorde is used to quantify DNA in viable cells.
  • $108
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BODIPY-Cholesterol
T41008878557-19-8
BODIPY-Cholesterol (TF-Chol) is a cholesterol analog with a fluorescent BODIPY motif and cellular permeability, and is a novel BODIPY cholesterol probe.BODIPY-Cholesterol can be used to study intracellular sterol uptake and interorganelle sterol flux.
  • $299
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Diphenylterazine
T18978344940-63-2
Diphenylterazine (DTZ) is a bioluminescent agent. It produces very little background of its own, giving it an excellent signal-to-noise ratio.
  • $30
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CY5
T15025146368-11-8
Cy5 (Sulfo-Cyanine5) is a phalloidin dye used to label amino groups in peptides, proteins and oligonucleotides.
  • $30
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CY5-SE
T18949146368-14-1
CY5-SE (Cy5 NHS Ester) is a reactive dye used to label amino groups in peptides, proteins and nucleotides. It needs to be stored away from light. Excitation wavelength (nm): 640, emission wavelength (nm): 664.
  • $62
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DFHBI-1T
T314081539318-36-9
DFHBI-1T is an RNA aptamer-activated fluorescent probe that transmits through cell membranes.DFHBI-1T can be used for dynamic localization imaging of RNA in living cells.
  • $39
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Py-BODIPY-NHS ester
T18987201998-61-0
Py-BODIPY-NHS ester is a small molecular dye with strong UV absorption that can be used to label living cells and immobilise cells.
  • $83
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Lucifer Yellow CH dipotassium
T7845471206-95-6In house
Lucifer Yellow CH dipotassium is a water-soluble fluorescent tracer that labels endocytosis vesicles in cells.Lucifer Yellow CH dipotassium excites and emits at a maximum wavelength of 430 nm and 540 nm, respectively.
  • $42
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Methoxy-PMS
T417265162-13-2
Methoxy-PMS (1-Methoxyphenazine methosulfate) is stable electron-transport mediator between NAD(P)H and tetrazolium dyes, can induce active oxygen formation.
  • $30
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AQC
TD0101148757-94-2
AQC (6-Aminoquinolyl-N-hydroxysccinimidyl carbamate) is a reagent used in HPLC for the fluorescence detection of amino acid or protein sequences. It reacts with primary and secondary amino acids to produce fluorescent derivatives, enabling the detection of amino acids at picomolar levels.
  • $42
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BHQ3 Maleimide
T84299
BHQ3 Maleimide is a fluorescent probe that eliminates background fluorescence and can be used for protein labeling, nucleic acid labeling and cellular imaging.
  • $98
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Coppersensor 1
T40996874748-20-6
Coppersensor 1 (CS1) is a boron dipyrromethene-based fluorescent sensor for selective and sensitive detection of copper(I) ions (Cu + ) in biological samples. Coppersensor 1 can be imaged using any type of fluorescence microscope, including epifluorescence, confocal and multiphoton.
  • $91
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Biotin-aniline
T72079769933-15-5
Biotin-aniline is a probe that reacts strongly to RNA and DNA.Biotin-aniline is highly efficient and is used to capture subcellular transcriptomes in living cells with high spatial specificity.
  • $82
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Dil
T1512941085-99-8
DiI (DiIC18(3)) is a lipophilic membrane dye commonly used as a long-term tracer for neurons and other cells. DiI fluoresces very weakly before it enters the cell membrane, and only after it enters the cell membrane can it be excited to emit a strong orange-red fluorescence (λex=549 nm, λem=565 nm).
  • $29
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Biotin-4-aminophenol
T64781901770-40-9
Biotin-4-aminophenol (BP) is a selective and potent biotin-phenol analog that works by generating free radicals and binding to tyrosine residues in proteins.
  • $34
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