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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5,836 – 5,850 of 7,180 results

5,836

Electron Microscopy Sciences QuickStick™ Quick-Stick 135

The mounting wax is used to temporarily bond samples during a processing application. After processing, the mounting wax is washed away in acetone leaving no residue.
A thermoplastic polymer with a softening point of 71 degree C (160 degree F) and flow point of 135 degree C (275 degree F). Viscosity at flow point is 6,000cps. The color is crystal clear allowing for applications utilizing transmitted light . QuickStickT comes 20 sticks/tray and it weighs approximately 350 gram. Each stick measures 3"(L) x 1/4"(W) x 1/4"(H).

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5,837

Biotium One-Step Lumitein™ Protein Gel Stain, 1X

One-Step Lumitein™ Protein Gel Stain is a ready-to-use luminescent red protein gel stain. It is a dramatically improved version of our original Lumitein™ protein gel stain for convenience and safety. One-Step Lumitein™ gel staining requires only a single 5-60 minute staining step without fixation. Destaining is optional. One-Step Lumitein™ can detect as little as approximately 1-10 ng of protein per band depending on the staining method used, although staining intensity varies between proteins. Staining is fully compatible with mass spectrometry and Edman-based sequencing. Staining can be imaged using a UV transilluminator with EtBr or SYBR filter set, a blue light transilluminator, or a laser-based gel scanner.

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5,838

eMolecules 14263-94-6 | Fast Blue B Salt | Apollo Scientific | MFCD00075203 | 475.460 | C14H12Cl4N4O2Zn | 0.000 | [Cl-].[Cl-].[Cl-].[Cl-].[Zn++].COc1cc(ccc1[N+]#N)-c1ccc([N+]#N)c(OC)c1 | 25g | 562451008

Fast Blue B Salt | Apollo Scientific | 14263-94-6 | MFCD00075203 | 475.460 | C14H12Cl4N4O2Zn | 0.000 | [Cl-].[Cl-].[Cl-].[Cl-].[Zn++].COc1cc(ccc1[N+]#N)-c1ccc([N+]#N)c(OC)c1 | 25g | 562451008

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5,839

eMolecules 61-73-4 | Methylene blue | Combi-Blocks | MFCD00012111 | 319.850 | C16H18ClN3S | 97.000 | [Cl-].CN(C)c1ccc2nc3ccc(cc3sc2c1)=[N+](C)C | 25g | 528669863

Methylene blue | Combi-Blocks | 61-73-4 | MFCD00012111 | 319.850 | C16H18ClN3S | 97.000 | [Cl-].CN(C)c1ccc2nc3ccc(cc3sc2c1)=[N+](C)C | 25g | 528669863

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5,840

Bioworld Safranin-O-Counterstain, 100 mL

Safranin O is a biological stain commonly used as a counter stain for gram-negative bacteria in the Gram stain procedure. Safranin O has been observed to bind to DNA at a pH 2.21. In the Flemming triple stain procedure Safranin O is used to stain for chromosomes. In late Palaeozoic pteridosperm cuticlesSafranin Ohas shown increased contrast, emphasized cutinization differences, and enhanced the three-dimensional morphology of complex epidermal features when compared with other dyes. The compound has also been used with alcian blue in the histochemical study of the distribution and morphometric characteristics of mast cells.Safranin Ohas also been used to detect mucin and cartilage.

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5,841

ILEX LIFE SCIENCES LLC Biocolor Blyscan Glycosaminoglycan (sGAG) Dye Reagent, Component, 3 x 110 ml

The Biocolor Blyscan™ Glycosaminoglycan Assay is a quantitative colorimetric dye-binding method for the analysis of sulfated proteoglycans and glycosaminoglycans (sGAG). The assay can be used to measure the total sGAG content and can also be adopted to determine the O- and N-sulfated glycosaminoglycan ratio within test samples. The dye label used in the assay is 1,9-dimethylmethylene blue and the dye is employed under conditions that provide a specific label for the sulfated polysaccharide component of proteoglycans or the protein free sulfated glycosaminoglycan chains. Applications: Cell culture derived material, soluble sGAGs from fluids (ex. synovial fluid, urine), fibrous and hyaline cartilages, tissues (ex. arteries, heart, lung, skin and other material containing extracellular matrix, tumors). Soluble sGAGs may be assayed directly, solid materials will require a preliminary papain extraction. Sensitivity: 0.5 µg. Assay run time: 1 hour.

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5,842

Biolegend Brilliant Violet 605TM anti-hu

Brilliant Violet 605 anti-human CD2 [TS1/8] Isotype Mouse IgG1 Reactivity Human Apps FC Size 100 tests

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5,843

Biotium DAPI

DAPI (4′,6-Diamidino-2-Phenylindole, dihydrochloride) is a popular blue DNA dye that is used as a nuclear counterstain in fluorescence microscopy, chromosome staining and flow cytometry. The dye binds to the minor groove of dsDNA with approximately 20-fold fluorescence enhancement, with higher affinity for A-T rich regions. DAPI may be used in fixed cells or in live cells at higher concentrations. The dye has an excitation/emission of 358/461 nm. Properties: Yellow solid soluble in water; Store dessicated at 4°C, protect from light; Ex/Em= 358/461 nm (with DNA); C16H17Cl2N5; MW:350.25; [28718-90-3].

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5,844

Biotium BactoView™ Live Red

BactoView™ Live dyes are fluorogenic live cell bacterial stains. The stains are bright and cell-permeable, they are able to stain both gram-positive and gram-negative bacteria. Stained cells can be detected by fluorescence microscopy or flow cytometry. BactoView™ Live dyes can stain both live and dead bacteria, though dead cells tend to stain a bit brighter than live cells. BactoView™ Live Red can be detected in the PE-Cy5 channel for flow cytometry, and the Cy3 channel for microscopy. Properties: Liquid; Ex/Em= 572/675 nm; Store at 4°C and protect from light.

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5,845

Sage Science Inc 1.5 DYE FREE BLUEPIPPIN REA

NC3787786 1.5 DYE FREE BLUEPIPPIN REA

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5,846

Ethos Biosciences Gram Stain Set, Iodine Traditional, 4x8oz, Ethos

Gram Stain Kit with Traditional Iodine is a complete staining system designed for microbiology and general laboratory applications. The kit includes the essential reagents—crystal violet, traditional diluted iodine mordant, decolorizer, and safranin counterstain—formulated to work together for consistent Gram staining results. The iodine solution forms a complex with the primary stain to enhance retention within gram-positive organisms. This kit provides clear differentiation between gram-positive and gram-negative bacteria for accurate microscopic evaluation. Ideal for routine diagnostic, research, and educational workflows, it is supplied in chemically compatible containers for convenient laboratory use.

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5,847

Apexbio Technology LLC ABTS diammonium salt 30931-67-0 1g

ABTS diammonium salt (CAS 30931-67-0) is a soluble peroxidase substrate frequently utilized for evaluating antioxidant activity It is designed to undergo enzymatic oxidation by horseradish peroxidase (HRP) generating the ABTS radical cation a green-colored species measurable by spectrophotometry ABTS diammonium salt exerts its activity primarily through oxidation by HRP resulting in a colored product with a characteristic absorbance profile In in vitro assays it enables quantitative analysis of antioxidant capability Based on these properties ABTS diammonium salt holds research potential in antioxidant activity assessment for various biologically relevant compounds including plant extracts pharmaceuticals and bioactive molecules