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.

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TSQ
TSQ

Item number: CDX-M0065-M100

TSQ (N-(6-Methoxy-8-quinolyl)-p-toluenesulfonamide) is a highly sensitive, membrane-permeable fluorescent probe widely used for the selective detection and imaging of intracellular zinc (Zn2+) ions. It is selective for Zn (II) in the presence of physiological concentrations of Ca (II) and Mg (II) ions. Upon binding...
Keywords: N-(6-Methoxy-8-quinolyl)-p-toluenesulfonamide, N-(6-Methoxy-8-quinolinyl)-4-methylbenzenesulfonamide, NSC 120213
Application: Sensitive, membrane-permeable fluorescent Zn2+ probe
MW: 328.39 D
305.00€ *
Review
N-[2-Danysylamino)ethyl]maleimide
N-[2-Danysylamino)ethyl]maleimide

Item number: CDX-C0069-M005

Thiol-reactive fluorescent probe. Spectral data: lambdaex=342nm, lambdaem=510nm (without thiol), lambdaex=342nm, lambdaem=530nm (with thiol).
Keywords: DNS, N-(2-Maleimidoethyl)dansylamide
Application: Thiol-reactive fluorescent probe
MW: 373.43 D
From 73.00€ *
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3,3'-Dipropyloxadicarbocyanine iodide
3,3'-Dipropyloxadicarbocyanine iodide

Item number: CDX-D0438-M050

DiOC3(5) is a fluorescent carbocyanine dye used to measure mitochondrial or bacterial membrane potential or for nucleic acid staining, by binding to DNA and RNA. It can be used for flow cytometry and live cell microscopy. Carbocyanine dyes are unique organic molecules that contain a conjugated electron-deficient...
Keywords: DiOC3(5), NK 2606, 3-Propyl-2-{(1E,3E)-5-[3-propyl-1,3-benzoxazol-2(3H)-ylidene]-1,3-pentadienyl}-1,3-benzoxazol-3-ium iodide
Application: Fluorescent carbocyanine dye, mitochondrial/bacterial membrane potential measurement, FC, FM
MW: 514.41 D
From 131.00€ *
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1,1'-Dibutyl-3,3,3',3'-tetramethyl indadicarbocyanine perchlorate
1,1'-Dibutyl-3,3,3',3'-tetramethyl indadicarbocyanine...

Item number: CDX-D0997-M050

DiOC4(5) is a fluorescent carbocyanine dye used to measure mitochondrial membrane potential.
Keywords: DiIC4(5)
Application: Fluorescent carbocyanine dye, mitochondrial membrane potential measurement
MW: 567.16 D
From 182.00€ *
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1,1'-Didodecyl-3,3,3',3'-tetramethyl indocarbocyanine perchlorate
1,1'-Didodecyl-3,3,3',3'-tetramethyl indocarbocyanine...

Item number: CDX-D1022-M050

DiIC12(3) is a lipophilic fluorescent carbocyanine dye used to measure mitochondrial membrane potential. Can be used for neuronal tracing, vascular imaging and cell membrane labeling. It may incorporate into membranes more easily than DiI. It is weakly fluorescent in water but highly fluorescent and quite...
Keywords: DiIC12(3)
Application: Lipophilic fluorescent carbocyanine dye, mitochondrial membrane potential measurement
Species reactivity: Lipophilic fluorescent carbocyanine dye*mitochondrial membrane potential measurement
MW: 765.55 D
From 182.00€ *
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1,1'-Diethyl-3,3,3',3'-tetramethyl indodicarbocyanine iodide
1,1'-Diethyl-3,3,3',3'-tetramethyl indodicarbocyanine iodide

Item number: CDX-D1114-M050

DiIC2(5) is a far-red fluorescent carbocyanine dye used primarily for membrane labeling, mitochondrial potential studies, and cell tracing in fluorescence microscopy and flow cytometry. Spectral Data: Excitation max: ~ 640nm, Emission max: ~660nm (accord. Lit).
Keywords: DiIC2(5), NK 3918, C5-indocyanine, CY5 DI ET
Application: Far-red fluorescent dye, membrane labeling, mitochondrial potential studies, cell tracing, FM, FC
MW: 538.51 D
From 131.00€ *
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Fluorescein disodium salt
Fluorescein disodium salt

Item number: CDX-F0363-G250

Fluorescein disodium salt is a water-soluble version of fluorescein. Fluorescein is a fluorophore commonly used in microscopy, flow cytometry forensics, serology to detect latent blood stains, and in dye tracing (attached to certain biologically active molecules). Fluorescein sodium salt has been utilized in studies...
Keywords: Fluorescein sodium salt, Sodium fluorescein, C.I. Acid Yellow 73, D and C Yellow No. 8, C.I. 45350, Ful-Glo, Uranine
Application: Water-soluble fluorescein version
MW: 378.27 D
178.00€ *
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NIR-797-amine
NIR-797-amine

Item number: CDX-I0173-M025

Near-infrared cyanine dyes for labelling. Spectral data: Absorption lambdamax: 795nm, Emission lambdamax: 829nm.
Keywords: IR-783 plus, 1,1'-Bis(4-sulfobutyl)-11-(4-aminophenylthio)-3,3,3',3'-tetramethyl-10,12-tri methyleneindotricarbocyanine...
Application: NIR fluorescent dye
MW: 839.1 D
254.00€ *
Review
4-Methylumbelliferyl alpha-D-glucopyranoside
4-Methylumbelliferyl alpha-D-glucopyranoside

Item number: CDX-M0583-M250

4-Methylumbelliferyl-alpha-D-glucopyranoside is a non-fluorescent but sensitive fluorogenic substrate for alpha-glucosidase yielding a blue fluorescent solution. 4-Methylumbelliferyl-alpha-D-glucopyranoside is cleaved by alpha-glucosidase to release the fluorescent moiety 4-methylumbelliferyl (4-MU). 4-MU...
Keywords: 4-MU-alpha-D-Glc, 4-Methylumbelliferyl alpha-D-glucoside, 4-Methylumbelliferyl-alpha-D-Glucose,...
Application: Fluorogenic alpha-glucosidase substrate
MW: 338.31 D
From 218.00€ *
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Sulforhodamine B sodium salt
Sulforhodamine B sodium salt

Item number: CDX-S0005-G005

Sulforhodamine B (SRB) is a water-soluble, anionic red fluorescent aminoxanthene dye. It is often used as a membrane-impermeable polar tracer or for cell density determination via determination of cellular proteins (cytotoxicity assay). The SRB assay is extensively used for in vitro cytotoxicity screening and in...
Keywords: C.I. Acid Red 52, C.I. 45100, Acid Red XB, Acid Rhodamine B
Application: Water-soluble, membrane-impermeable anionic red fluorescent dye, cytotoxicity assays
MW: 580.65 D
From 131.00€ *
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Sulforhodamine B
Sulforhodamine B

Item number: CDX-S0288-G001

Sulforhodamine B (free acid) is a xanthene dye widely used in cell biology, analytical chemistry, and histology as a sensitive fluorescent and colorimetric tracer. With strong absorption in the visible range (~565 nm) and intense red emission (~586 nm), it is employed in fluorescence microscopy, flow cytometry, and...
Keywords: SRB, Lissamine Rhodamine B, SRA-B, Neolan Red E-XB 400 FA
Application: Cell biology, analytical chemistry, histology, sensitive fluorescent / colorimetric tracer, FM, FC
MW: 558.67 D
From 44.00€ *
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Calcein Blue
Calcein Blue

Item number: CDX-C0681-G001

Calcein Blue is a membrane-impermeant fluorescent dye. It is a fluorescent metal ion indicator and a cell-staining reagent widely used in biochemical, analytical and imaging applications. Calcein Blue is a metallofluorochromic indicator for EDTA titration. It exhibits strong fluorescence, typically with excitation...
Keywords: 4-Methylumbelliferone-8-methyleneiminodiacetic acid
Application: Membrane-impermeant fluorescent dye, fluorescent metal ion indicator, cell-staining reagent
MW: 321.28 D
From 95.00€ *
Review
229 from 269 pages