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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4,276 – 4,290 of 7,093 results

4,276

Cayman Chemical N4TosylLargInIn methyl e 25g

A synthetic substrate of serine proteases, including thrombin, trypsin, chymotrypsin, and kallikreins; also binds to and inhibits anaphase-promoting complex, a ubiquitin ligase, in Xenopus egg extract

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4,277

eMolecules 1936-15-8 | Sodium (E)-7-hydroxy-8-(phenyldiazenyl)naphthalene-1,3-disulfonate | Combi-Blocks | MFCD00012457 | 452.360 | C16H10N2Na2O7S2 | 96.000 | [Na+].[Na+].Oc1ccc2cc(cc(c2c1\N=N\c1ccccc1)S([O-])(=O)=O)S([O-])(=O)=O | 5g | 267170648

Sodium (E)-7-hydroxy-8-(phenyldiazenyl)naphthalene-1,3-disulfonate | Combi-Blocks | 1936-15-8 | MFCD00012457 | 452.360 | C16H10N2Na2O7S2 | 96.000 | [Na+].[Na+].Oc1ccc2cc(cc(c2c1\N=N\c1ccccc1)S([O-])(=O)=O)S([O-])(=O)=O | 5g | 267170648

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4,278

Medchemexpress LLC Quinaldine red | 117-92-0 | 97.0% | 5 G

Quinaldine red is a fluorescent probe used for determining the melting temperature (Tm) of proteins. It is intended for research use only.

Acts as a fluorescent probe
Used for determining the melting temperature (Tm) of proteins

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4,279

Pfaltz & Bauer Sudan II C.I. No. 12140 USP- 25G | 3118-97-6

Sudan II C.I. No. 12140 USP- 25G | 3118-97-6

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4,280

Cambridge Isotope Laboratories Human C-reactive protein (CRP) (15N 98%) CP 95% 100 ug

Human C-reactive protein (CRP) (15N 98%) CP 95% 100 ug

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4,281

Sigma Aldrich Fine Chemicals Biosciences BioTracker 650 Red Nuclear

The nucleus is a membrane-enclosed organelle found in eukaryotic cells. Cell nuclei contain most of the cells genetic material organized as multiple long linear DNA molecules in complex with a large variety of proteins such as histones to form chromosomes. Traditionally DNA stains such as DAPI and Hoechst have been used for microscopy but require fixation and cannot be used for live cell imaging.The BioTracker 650 Red Nuclear Dye is a cell-membrane permeable red fluorescent DNA dye that specifically stains nuclei in live or fixed cells. It has excellent specificity for DNA without the need for a wash step and it has low toxicity for live cell imaging. The dye is supplied with a vial of verapamil an efflux pump inhibitor that may improve probe retention and live cell staining in certain cell types.Spectral PropertiesAbsorbance 650nmEmission 675nm

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4,282

Bioworld Cresol Red, Free Acid, 5 g

Loss on Drying(%)- <=5.0 Residue after Ignition(%)- <=0.1 Solubility (5mg/L water)(P/F)- Pass Visual Transition(P/F)- Pass

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4,283

Electron Microscopy Sciences Ponceau Acid Fuchsin 100 ML

Used in Goldner's Trichrome Method for connective tissue stains – Elastic tissue stain. Stain with a poly-acid step. See Luna, Lee G. Histopathologic Methods and Color Atlas of Special Stains and Tissue Artifacts. Johnson Printers, Downerts Grove, IL p151-152, c 1992.

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4,284

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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4,285

Chem-Impex International, Inc. Orcein (synthetic) | MFCD00062310 | 25G

Orcein (synthetic), MFCD00062310, 25G

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4,286

Bioventures Inc TRACKING DYE 6X 1ML

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), 16fmoles/band/ul Concentration