Stains and Dyes

A variety of solutions used to selectively bind to and enhance the visibility of biological structures using color and/or fluorescence; used for histology, protein staining, electrophoresis, bacterial classification, blotting, etc.

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4,456 – 4,470 of 7,093 results

4,456

BIOLEGEND BRILLIANT VIOLET 750TM STREPTA

503037679 BRILLIANT VIOLET 750TM STREPTA

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4,457

Sigma Aldrich Fine Chemicals Biosciences Methylene Blue hydrate suitable for nucleic acid staining, BioReagent | 122965-43-9 | MFCD00150006 | 25G

Methylene Blue hydrate suitable for nucleic acid staining, BioReagent | 122965-43-9 | MFCD00150006 | 25G

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4,458

Electron Microscopy Sciences The Davidson Marking System, 1/EA

Individual tissue marking dye bottle. Color: Yellow .

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4,459

Electron Microscopy Sciences The Davidson Marking System, 1/EA

The Davidson Marking System® was the first to be developed for the Mohs technique. It is suitable for a variety of lab applications involving tissue orientation. The dyes are specifically formulated for both fresh and frozen tissue samples and can be used pre/post fixation. Complete sets offer everything needed in one convenient location, perfect for small spaces such as lab work stations, shelves, or mobile units. Set includes 7 colors Color: Multi .

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4,460

Electron Microscopy Sciences The Davidson Marking System, 1/EA, 2oz Bottle

Individual tissue marking dye bottle. Color: Black .

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4,461

Electron Microscopy Sciences The Davidson Marking System, 1/ea, 2oz Bottle

Individual tissue marking dye bottle. Color: Blue .

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4,462

Electron Microscopy Sciences The Davidson Marking System, 1/ea, 2oz Bottle

Individual tissue marking dye bottle. Color: Red .

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4,463

Electron Microscopy Sciences The Davidson Marking System, 1/ea, 2oz Bottle

Individual tissue marking dye bottle. Color: Green .

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4,464

Biotium DII (DIIC18(3))

DiI (DiIC18(3); 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine) is a widely used carbocyanine membrane dye that labels cell membranes by inserting its two long (C18 carbon) hydrocarbon chains into the lipid bilayer. Particularly, it has been extensively used for the anterograde and retrograde labeling of neurons. The intense fluorescence and high photostability of the dye make it possible to visualize the fine structures (axons and dendrites) of the neurons. Due to its low toxicity and the tendency to give highly stable cell labeling, the dye has also been generally used for long term cell tracing of cells both in cultures and in living embryos or animals. Also offered as ready-to-use CellBrite™ Cytoplasmic Membrane Dyes. Properties: Ex/ Em(MeOH) = 549/565 nm; e = 148,000; Dark red solid soluble in ethanol, DMF or DMSO; Store at 4°C; C59H97ClN2O; MW: 933.88; [41085-99-8]

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4,465

Biotium RedDot™1, 200X in water

RedDot™1 is a far-red cell membrane-permeable nuclear dye similar to Draq5™. The dye is ideal for specifically staining the nuclei of live cells. RedDot™1 is highly thermostable and photostable, providing convenient handling for demanding applications such as confocal microscopy. The stain may also be used for DNA content analysis by flow cytometry. The dye has an excitation/emission of 662/694 nm when bound to DNA. Properties: Liquid; Store at 4°C or -20°C, protect from light; Ex/Em= 662/694 nm (with DNA).

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4,466

Biotium Thiazole Orange, 10mM in DMSO

Thiazole orange (TO) is a nucleic acid dye commonly used in reticulocyte analysis to stain residual RNA of blood cells, or to stain DNA in agarose gels and capillary electrophoresis. Thiazole Orange stains the yeast nucleus, and is also able to stain bacteria and mammalian cells. The dye has an excitation/emission of 512/533 nm when bound to DNA. Properties: Orange solution; Store dessicated at 4°C, protect from light; Ex/Em= 512/533 nm (with DNA); C26H24N2O3S2; MW: 476.61; [67-68-5].

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4,467

Biotium RH795

The styryl dye RH795 is a fast-responding potentiometric probe that is primarily used for functional imaging of neurons. The dye is spectrally similar to RH414, but exhibits different physiological effects during staining. For example, RH414 causes arterial constriction during cortex staining, while RH795 does not. The excitation/emission data below are for the dye in methanol. In cell membranes, the spectra of styryl dyes are typically blue-shifted by as much as 20 nm for absorption or excitation and 80 nm for emission. Properties: Ex/Em (MeOH) = 530/712 nm; Orange red solid soluble in H2O; Store at -20°C and protect from light; C26H39Br2N3O2; MW: 585.42; [172807-13-5]

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4,468

Biotium Sulforhodamine B

Like other sulforhodamine dyes, the highly water-soluble sulforhodamine B can be used as a polar tracer for cell morphology and neuronal cell-cell communication studies. Sulforhodamine B has also been shown to be a superior protein stain for quantification of cellular proteins in cultured cells. The dye is believed to bind to basic amino acids of proteins, and colorimetric measurement of protein-bound dye provides an estimate of the total protein mass as a measure of cell number. The assay is simple and reproducible, and the end-point measurement is not time-critical, a significant advantage over tetrazolium-based assays. The intensely colored, water-soluble dye is particularly useful for in vitro cell-based screening of anticancer drugs and well-suited to large scale screening of anticancer drug candidates from natural extracts or synthetic chemicals. Properties: Ex/Ex = 565/586 nm; Red solid soluble in water; Store at room temperature; C27H30N2O7S2; MW: 559; [2609-88-3]

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4,469

Biotium NucSpot Live 488, 1000X in DMSO

NucSpot Live Cell Nuclear Stains are cell-membrane permeable DNA dyes that specifically stain nuclei in live or fixed cells. They have excellent specificity for DNA without the need for a wash step, and they have low toxicity for live cell imaging. The dyes are supplied as 1000X stock solutions in DMSO, and are supplied with a vial of verapamil, which may increase probe retention and staining in some cell types. NucSpot Live 488 stains nuclei with green fluorescence and has an excitation/emission of 500/515 nm. Properties: Ex/Em= 500/515 nm; Store at 4°C and protect from light.

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4,470

Biotium Thioflavin T "high purity grade"

A cell-permeable benzothiazole dye that exhibits enhanced fluorescence (Ex/Em 450/482 nm) upon binding to amyloid fibrils. Useful in monitoring stacked b-sheet aggregates, Thioflavin T has also been used in histology and for protein characterization.Biotium offers high purity grade of Thioflavin T with HPLC purity greater than 97%.Properties: Yellow solid soluble in DMF and DMSO; Stored desiccated at 4°C; C17H19ClN2S; MWt: 318.86; [2390-54-7]

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