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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3,856 – 3,870 of 7,390 results

3,856

Bioworld Alizarin Red S, 25 g

Alizarin Red S is used in a biochemical assay to determine, quantitatively by colorimetry, the presence of calcific deposition by cells of an osteogenic lineage. Alizarin Red S has also been used as a histochemical stain for calcium in cells of non-osteogenic lineage and also a colorometric pH indicator in the range of 3.8-5.4.Appearance:Crystalline powderPhysical State:SolidSolubility:Soluble in water (1 mg/mL).Storage:Store at 4° CMelting Point:287-289 °CBoiling Point:430 °C

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3,857

Sigma Aldrich Fine Chemicals Biosciences Neutral Red Dye content >=90 % | 553-24-2 | MFCD00012651 | 25G

Neutral Red Dye content >=90 % | Mol Wt: 288.78 | 553-24-2 | MFCD00012651 | 25G

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3,858

Sigma Aldrich Fine Chemicals Biosciences BioTracker 488 Green Micro

Cytoskeleton proteins such as actin and tubulin play an important role in cell structure and motility. Dysregulation of cytoskeletal proteins are also involved in cancer metastasis and disease. Taxol binds to polymerized tubulin and stabilizes microtubules resulting in inhibition of mitosis. However fluorescent taxol compounds like the BioTracker Microtubule Cytoskeleton dyes are less disruptive of microtubule dynamics and cell division presumably due to lower binding affinity of the fluorescent probe compared to taxol itself.The BioTracker Cytoskeleton Microtubule Dye is a green fluorescent cell-permeable taxol probe for imaging the microtubule cytoskeleton in live cells. It is a simple rapid and sensitive stain that can be detected using the fITC channel. The dye is supplied with a vial of 100mM verapamil an efflux pump inhibitor that may improve probe retention and staining in certain cell types.Spectral PropertiesAbsorbance 500nmEmission 515nm

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3,859

eMolecules 2611-82-7 | New Coccine | Chem-Impex604.460 | C20H11N2Na3O10S3 | 80.000 | [Na+].[Na+].[Na+].Oc1ccc2cc(cc(c2c1N=Nc1ccc(c2ccccc12)S([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O | 25g | 112757304

New Coccine | Chem-Impex | 2611-82-7604.460 | C20H11N2Na3O10S3 | 80.000 | [Na+].[Na+].[Na+].Oc1ccc2cc(cc(c2c1N=Nc1ccc(c2ccccc12)S([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O | 25g | 112757304

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3,860

Abcam Phenol red sodium salt, pH indicator, 25G

MW 376.37 g/mol. Water soluble pH indicator used in the 6.8 (yellow) to 8.2 (red) range. Commonly employed as a cell tissue culture pH marker. Under normal conditions, phenol red added to the growth medium will have a pink-red color. Dying cells or overgrowth of contaminants will cause a change in pH resulting in a change in indicator color.

The product is subject to the following: Abcam Restricted Use Statement

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3,861

Bioventures Inc TRACKING DYE 6X 10ML

MAPMARKER, 50-1000BP, ROX Labeled (50, 75, 100, 125, 150, 200, 250, 300, 350, 400, 450, 475, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950, 1000bp), 8fmoles/band/ul Concentration

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3,862

Alkali Scientific Red Dye 50mL 13% 50mL Vial, 10/Pk, 24/Case

Red Dye 13%, 50mL Vial, 10/Pk, 24/Case is a sterile laboratory dye solution designed for general laboratory visualization, liquid tracking, and workflow differentiation. The vivid red coloration and controlled concentration support quality control procedures, training demonstrations, and process validation in microbiological, molecular, and pharmaceutical laboratories. Supplied in sterile 50mL vials, the solution is easy to dispense and integrate into routine laboratory procedures without preparation. The dye may be used for media visualization, sample marking, and pipetting accuracy demonstrations while maintaining compatibility with standard laboratory workflows. This stable and non reactive dye solution provides reliable visual reference support for routine laboratory processes and controlled testing environments.

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3,863

Abcam Methyl red, pH indicator, 25G

MW 269.3 g/mol. pH indicator. Azo dye used in the methyl red (MR) test to identify bacteria producing stable acids by mechanisms of mixed acid fermentation of glucose. The transition range is pH 4.4 (red) to pH 6.2 (yellow). Absorption: λmax 410 nm.

The product is subject to the following: Abcam Restricted Use Statement

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3,864

Sigma Aldrich Fine Chemicals Biosciences BioTracker 490 Green Cytop

Lipophilic carbocyanine dyes are widely used for labeling neurons in tissues by retrograde labeling and to label membranes in a wide variety of cell types. The dyes are weakly fluorescent in aqueous phase but become highly fluorescent in lipid bilayers. Staining is highly stable with low toxicity and very little dye transfer in between cells making the dyes suitable for long-term cell labeling and tracking studies. When live cells are stained the dyes label plasma membranes and also are taken up into endocytic compartments. Cells can be fixed either before or after staining although permeabilization affects the staining pattern.Unlike PKH dyes BioTracker Cytoplasmic Membrane Dyes do not require a complicated hypoosmotic labeling protocol. They are ready-to-use dye delivery SOLUTIONons that can be added directly to normal culture media to label suspended or adherent cells in culture. Spectral PropertiesAbsorbance 484nmEmission 501nm

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3,865

Enterprise Technology Solutions Genuine Joe Floor Cleaner, Concentrated, Neutral pH, 32 oz, Yellow

Neutral floor cleaner is environmentally recognized for reduction of carbon footprint. It makes up to 64 ready-to-use gallons per the 32 oz. portion-control bottle. Neutral pH won't harm or dull any hard surface. This mild cleaner will emulsify and suspend dirt and grime from tabletops to floors and from spray bottle to auto-scrubber. You can also spray it on appliances, desks, plastic, stainless steel and painted surfaces. Floor cleaner includes a built-in measuring cup for precise and no-spill use. The dilution ratio is 1:256 (1/2 oz. per gallon.)

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3,866

Scytek Laboratories HEMATOXYLIN, MAYER'S, 1 L

Mayer's Hematoxylin (Lillie's Modification) is a progressive nuclear hematoxylin stain with several histological applications. Nuclei should staining is strong, clean, crisp, and no differentiation is needed. Bluing reagent (Catalog: BRT) may be used following hematoxylin to ""blue"" or alter the shade of hematoxylin from a purple to blue. Nuclei: Purple. Nuclei after Bluing: Blue. Blue nuclei after Eosin: Blue to Violet.Hematoxylin is a nuclear stain that is used as a counterstain for immunohistochemistry (IHC). Together with eosin, it forms the Hematoxylin and Eosin stain (H&E stain), one of the most commonly used stains in histology.Summary Protocol:Apply Hematoxylin to completely cover specimen and incubate for 2-10 minutes with hematoxylin according to desired intensity.

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3,867

Medchemexpress LLC Pigment yellow 83 | 5567-15-7 | 500 MG

Pigment Yellow 83 is a chemical compound functioning as a yellow colorant. It is primarily utilized in research applications.

Functions as a yellow colorant
Intended for research purposes

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3,868

Crescent Chemical Co Inc AZORUBIN PURE

Azorubin pure λ max. (0.001 % in water)A 1 cm/λ max. (0.001 % in water) 514 - 522min. 0.4 Size - 25G Storage Conditions - +15 °C TO +30 °C Catalog Number - 14410.01 CAS 3567-69-9

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3,869

Cytoskeleton, Inc. SiR-Tubulin Kit, 50 nmol SiR-Tubulin and 1 umol verapamil

SiR-tubulin is based on the microtubule binding drug Docetaxel. SiR-tubulin is fluorogenic, cell permeable and highly specific for microtubules. Sir-tubulin stains endogenous microtubules without the need for genetic manipulation or overexpression. Its emission in the far red minimizes phototoxicity and sample autofluorescence. SiR-tubulin is compatible with GFP and/or m-cherry fluorescent proteins. It can be imaged with standard Cy5 filtersets. SiR-tubulin can be used for widefield, confocal, SIM or STED imaging in living cells and tissue. Probe quantity allows 50 – 200 staining experiments.

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3,870

Electron Microscopy Sciences Nuclear Fast Red Solution 500 ML

(Kernechtrot)

For bone and its related stain. See references Pizzolato, P., J. Histochem. Cytochem., 12:333-136, 1964. and Luna, L.G., (ed), Manual of Staining Methods of the AFIP, 3rd Ed, McGraw-Hill, NY, c 1968, p 77.

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Medchemexpress LLC Pigment yellow 83 | 5567-15-7 | 500 MG Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC Pigment yellow 83 | 5567-15-7 | 500 MG