Dyes and Labeling Reagents

This category comprises chemicals for permanent and temporary labeling of organelles, proteins, and other molecules. For example, this includes the covalent linkage of a target protein, such as an antibody, with a fluorescent dye/fluorophore, allowing detection of the target protein in microscopic experiments. For the purpose of detection, proteins can also be coupled with reporter enzymes (e.g. HRP) or radioactive isotopes. To facilitate the purification of a target protein, biotinylation followed by streptavidine affinity binding has proven to be effective.

This category comprises chemicals for permanent and temporary labeling of organelles, proteins, and other molecules. For example, this includes the covalent linkage of a target protein, such as an... read more »
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Dyes and Labeling Reagents

This category comprises chemicals for permanent and temporary labeling of organelles, proteins, and other molecules. For example, this includes the covalent linkage of a target protein, such as an antibody, with a fluorescent dye/fluorophore, allowing detection of the target protein in microscopic experiments. For the purpose of detection, proteins can also be coupled with reporter enzymes (e.g. HRP) or radioactive isotopes. To facilitate the purification of a target protein, biotinylation followed by streptavidine affinity binding has proven to be effective.

231 from 269 pages
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1-Pyrenebutanoic acid hydrazide
1-Pyrenebutanoic acid hydrazide

Item number: CDX-P0049-G001

1-Pyrenebutanoic acid hydrazide (PBH) is a fluorescent labeling reagent commonly used in biochemistry and molecular biology. Spectral Data: lambdaex 340nm, lambdaem 375nm (MeOH). The hydrazide group reacts with carbonyl groups (like aldehydes or ketones) to form hydrazones. This makes PBH useful for labeling...
Keywords: PBH, 1-Pyrenebutyric hydrazide, Pyrenebutyrylhydrazine
Application: Fluorescent labeling reagent, oxidized sugar/glycoprotein/carbonylated biomolecule labeling
MW: 302.37 D
From 240.00€ *
Review
Rhodamine B hydrazide
Rhodamine B hydrazide

Item number: CDX-R0178-M050

Rhodamine B hydrazide is a water-soluble fluorescent probe. Rhodamine B hydrazide can be used to label biomolecules (e.g. proteins, sugars) that have aldehyde or ketone groups. Spectral Data: lambdaex 510nm, lambdaem 578nm. It has been used for the detection of copper, peroxynitrite, nitric oxide, hydrogen peroxide,...
Keywords: 2-Amino-3',6'-bis(diethylamino)-spiro[1H-isoindole-1,9'-[9H]xanthen]-3(2H)-one
Application: Water-soluble fluorescent probe, aldehyde / ketone group labeling
MW: 456.59 D
From 246.00€ *
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Tetramethylrhodamine methyl ester perchlorate
Tetramethylrhodamine methyl ester perchlorate

Item number: CDX-T0012-M025

Tetramethylrhodamine methyl ester perchlorate (TMRM) is a cell-permeant, cationic fluorescent dye widely used to assess mitochondrial membrane potential and for labeling mitochondria in live-cell imaging and flow cytometry. By selectively accumulating in active mitochondria according to their membrane potential,...
Keywords: TMRM, TMR methyl ester
Application: Cell-permeant, cationic fluorescent dye, mitochondria labeling mitochondria, live-cell imaging, FC
MW: 500.93 D
From 204.00€ *
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Tetramethylrhodamine ethyl ester perchlorate
Tetramethylrhodamine ethyl ester perchlorate

Item number: CDX-T0057-M025

Tetramethylrhodamine ethyl ester perchlorate (TMRE) is a cell-permeant, cationic fluorescent dye widely used to assess mitochondrial membrane potential and for labeling mitochondria in live-cell imaging and flow cytometry. By selectively accumulating in active mitochondria according to their membrane potential, TMRE...
Keywords: TMRE, TMR ethyl ester, T 669
Application: Cell-permeant, cationic fluorescent dye, mitochondria labeling mitochondria, live-cell imaging, FC
MW: 514.95 D
138.00€ *
Review
ThioGlo1
ThioGlo1

Item number: CDX-T0904-M010

ThioGlo1 is a thiol-reactive fluorescent probe. Upon reaction with a thiol group, a fluorescent adduct is formed that displays excitation/emission maxima of 384/513 nm, respectively. It also reacts with sulfite to form a fluorescent adduct with similar spectral characteristics, and interference from sulfite during...
Keywords: 10-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-9-methoxy-3-oxo-H-naphtho[2,1-b]pyran-2-carboxylic acid, methyl ester, ThioGlo-1
Application: Thiol-reactive fluorescent probe
MW: 379.32 D
From 85.00€ *
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5(6)-Carboxy-2',7'-difluorofluorescein
5(6)-Carboxy-2',7'-difluorofluorescein

Item number: CDX-C0262-M050

5(6)-Carboxy-2',7'-difluorofluorescein is a fluorinated fluorescein used as a fluorescent dye used as a building block for synthesis of fluorescent probes. It is a replacement for the widely used carboxyfluorescein and fluorescein isothiocyanate since the absorption and emission are virtually unchanged. It can be...
Application: Building block, fluorescent dye
MW: 414.32 D
117.00€ *
Review
3,3'-Dimethyloxacarbocyanine iodide
3,3'-Dimethyloxacarbocyanine iodide

Item number: CDX-D0805-M050

DiOC1(3) is a fluorescent carbocyanine dye used to measure mitochondrial membrane potential or staining of plasma membranes or nucleic acid (DNA). It can be used for flow cytometry and fluorescent microscopy and for discrimination of viable cells. Also used for imaging of fixed cells. Used as a donor in TR-FRET....
Keywords: DiOC1(3), NK 86, DMOCI, 3,3'-Dimethyl-2,2'-oxacarbocyanine iodide
Application: Fluorescent carbocyanine dye, mitochondrial membrane potential measurement, FC, FM
MW: 432.26 D
From 131.00€ *
Review
1,1'-Dimethyl-3,3,3',3'-tetramethyl indocarbocyanine iodide
1,1'-Dimethyl-3,3,3',3'-tetramethyl indocarbocyanine iodide

Item number: CDX-D1024-M050

DiIC1(3) is a fluorescent carbocyanine dye used mainly for assessing membrane potential in mitochondria and plasma membranes, especially in flow cytometry and fluorescence microscopy. DiIC1(3) has short alkyl chains (methyl groups), so it diffuses more easily but is less stably anchored in membranes than...
Keywords: DiIC1(3), HICI, NK 79, 1,1',3,3,3',3'-Hexamethylindocarbocyanine iodide, Cy3 dimethyl,
Application: Fluorescent carbocyanine dye, mitochondria/plasma membrane membrane potential measurement, FC, FM
MW: 484.43 D
From 131.00€ *
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1,1'-Dihexadecyl-3,3,3',3'-tetramethyl indocarbocyanine perchlorate
1,1'-Dihexadecyl-3,3,3',3'-tetramethyl indocarbocyanine...

Item number: CDX-D1132-M050

DiIC16(3) is a lipophilic fluorescent carbocyanine dye used for long-term membrane labeling, cell tracking and neuronal tracing. It is weakly fluorescent in water but highly fluorescent and quite photostable when incorporated into membranes. It has an extremely high extinction coefficient and short excited-state...
Keywords: DiIC16(3)
Application: Lipophilic fluorescent carbocyanine dye, long-term membrane labeling, cell tracking, neuronal tracing
MW: 877.76 D
From 182.00€ *
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Eosin B
Eosin B

Item number: CDX-E0279-G025

Eosin B is a xanthene-class acidic dye broadly used in histology, cytology and parasitology research for its staining properties and emerging pharmacological activity. In histology, Eosin B is used primarily as a counterstain for hematoxylin in methods like the H&E stain, differentiating between cell cytoplasm and...
Keywords: 4',5'-Dibromo-2',7'-dinitrofluorescein, NSC 56650, Acid Red 91/C.I. 45400 (Sodium Salt form)
Application: Counterstain for hematoxylin
MW: 580.09 D
From 87.00€ *
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Basic Fuchsin
Basic Fuchsin

Item number: CDX-F0102-G025

Basic Fuchsin is a triphenylmethane dye renowned for its intense magenta color. It is primarily used in microbiological and histological staining as it has a strong affinity for nucleic acids and cellular components, making it invaluable in the visualization of cell structures under a microscope. The mechanism of...
Keywords: C.I. Basic Violet 14, Fuchsine Basic, Basic Magenta, Rosaniline, C.I. 42510, Aizen Magenta
Application: Microbiological / histological staining, Gram staining
MW: 337.85 D
From 73.00€ *
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Naphthol AS-D
Naphthol AS-D

Item number: CDX-N0352-G005

Naphthol AS-D is a synthetic naphthol-based coupling component widely employed in the production of azo dyes for textile and pigment applications. It reacts with diazonium salts to produce bright, high-fastness colors on cellulosic fibers such as cotton, rayon, and linen, as well as on silk and leather. Naphthol...
Keywords: 3-Hydroxy-N-(2-methylphenyl)-2-naphthalenecarboxamide, C.I. 37520, Azonaphtol OT, Ultrazol D, Agrocer Red 112, Conazoic...
Application: Building block
MW: 277.32 D
65.00€ *
Review
231 from 269 pages