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1072 Results for: "SIGMA ALDRICH MICROSCOPY"

Eosin Y (yellowish) 5 wt. % in H₂O in aqueous solution, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Eosin Y, also known as Eosin yellowish is a widely used xanthene dye. It is a counterstain that is used to distinguish between various connective tissue fibers and matrices, and the cytoplasm of different types of cells. Eosin in combination with hematoxylin is useful to demonstrate the general histological architecture of a tissue.

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Bromophenol blue sodium salt for molecular biology, suitable for electrophoresis, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Bromophenol blue (BroB), an arylmethane color marker dye has a molecular mass of 670 Da.

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Phenol red sodium salt, powder, Bioreagent cell culture reagent, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red Sodium Salt (PRSS) is a water-soluble anionic fluorescent dye, that possesses an extra Na ion attached with the SO3 group compared to phenol red. It is intended for use in cell culture applications. A solution of phenol red will have a yellow color at a pH of 6,4 or below and a red color at a pH of 8,2 and above.

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Ethidium monoazide bromide (EMA) ≥95% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Ethidium bromide monoazide. ≥95% (HPLC), solid (3-Amino-8-azido-5-ethyl-6-phenylphenanthridinium bromide; Ethidium monoazide bromide)

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FITC (fluorescein-5-isothiocyanate, fluorescein isothiocyanate isomer I) ≥90% (by HPLC), powder suitable for protein labeling, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Fluorescein isothiocyanate (FITC) is yellow-orange in color with an absorption maximum at 495nm. Upon excitation, it emits a yellow-green color with an emission maximum at 525 nm. It is widely used to attach a fluorescent label to proteins via the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins. Fluorescein isothiocyanate isomer I has been proposed as a contact sensitiser.

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Toluidine blue O, Technical Grade, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Toluidine Blue O (TBO) is a thiazine dye of the quinone-imine family and is cationic in nature. It has been employed in polychromatic staining of paraffin embedded plant cell walls. It is a metachromatic dye suitable for a wide variety of histological staining procedures. A metachromatic dye suitable for a wide variety of histological staining procedures. Toluidine Blue O has been used to stain a variety of specimens like mesenchymal cells, taste buds, osteoblasts, matrix, and more.

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5-Ethylphenazinium ethyl sulphate ≥95%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phenazine ethosulfate is a cationic dye and a chemical electron acceptor. It is used in dye-linked enzyme assays. At a high pH, the dye produces free radicals, which may be the actual electron acceptors.

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Azure B (azure I) ≥89% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Azure B (azure I) ≥89% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®

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Perylene ≥99.0%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

The polycyclic aromatic hydrocarbon perylene is a hydrophobic fluorescent probe. It is highly photostable and displays blue fluorescence. Perylene is used as a dye for spectroscopic studies.

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Nitro blue tetrazolium chloride (NBT) ≥90% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Nitrotetrazolium blue (NBT), in combination with BCIP (5-bromo-4-chloro-3-indolyl-phosphate), is required for the detection of labeled probes in western blots. It is part of the colorimetric detection assay. NBT and BCIP dyes detect alkaline phosphatase activity, thereby generating an insoluble purple dye (diformazan). The dye is visible at areas where the labeled probe has hybridised to its target.

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Nigrosine, water soluble, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Nigrosin water soluble,For use as a biological stain (Acid black 2)

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Safranine O, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Safranine O, Sigma-Aldrich®

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Wright's stain modified, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Popular hematology stain used for differentially staining the cellular elements of blood. For dip, rack, and batch staining techniques.

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Wright Stain Set Set for Hema-Tek® I, 1000 and 2000, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Specific packaging intended for use on the Hema-Tek and Hema-Tek 1000 hematology stainers.

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Oil red O 0.5% in propylene glycol, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Oil red O is a lysochrome (fat-soluble dye) diazo dye used for staining of neutral triglycerides and lipids on frozen sections and some lipoproteins on paraffin sections. In histology, a supersaturated solution of oil red O in isopropanol may be used to stain fat in tissue.

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DAF-2 diacetate, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Cell permeable fluorescent detector of nitric oxide in living cells. 4,5-Diaminofluorescein diacetate (DAF-2 DA) has been used as a fluorescent dye for NO (nitric oxide) detection.

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AMMC iodide, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

AMMC is demethylated by Human CYP2D6 to the fluorescent product 3-[2-(N,N-diethyl-N-methylammonium)ethyl]-hydroxy-4-methylcoumarin.

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Thioflavin S, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Thioflavine S has been used to stain and visualize β-amyloid structures in the tissue sections.

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(3-Aminopropyl)triethoxysilane ≥98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

(3-Aminopropyl)triethoxysilane forms aminopropyl derivative of glass, an adsorbent for affinity chromatography. It is used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridisation procedures.

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Acid hematoxylin solution

Supplier: SIGMA ALDRICH MICROSCOPY

Gill formulation No. 2 may be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time. 4 g/L certified hematoxylin.

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Rhodamine B isothiocyanate–Dextran

Rhodamine B isothiocyanate–Dextran

Supplier: SIGMA ALDRICH MICROSCOPY

Rhodamine B is a thiol-reactive and photostable fluorescent dye. Rhodamine B isothiocyanate is an aminoxanthene that possesses carboxylic acid and isothiocyanate substituents on the pendant phenyl ring.

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ImmunoHistoMount™ Mounting Medium

Supplier: SIGMA ALDRICH MICROSCOPY

ImmunoHistoMount™ is a permanent aqueous mounting medium designed for tissue sections and cell smears with peroxidase and alkaline phosphatase chromogens that cannot be dehydrated with organic solvents.

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Eosin Y solution Aqueous, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

General purpose cytoplasmic counterstain. Used with hematoxylin and eosin staining.

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Polyvinyl alcohol, fully hydrolysed, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Prepared by alkaline hydrolysis.

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Carbol fuchsin, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Carbol Fuchsin is a basic dye which forms a yellow-brown compound in presence of acid. It is mainly required for the staining of mycobacteria. The waxy walls of mycobacteria helps in retaining the dye within cells. It can also be used for the staining of bacterial spores.

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Homovanillic acid fluorimetric reagent, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Homovanillic acid has been used as a standard in HPLC analysis. Metabolite of dihydroxyphenylacetic acid (DOPAC) by catechol O-methyltransferase; reagent for the fluorimetric determination of glucose oxidase and other oxidative enzymes.

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Silver enhancer solution A, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Silver enhancer solution A has been used for silver staining.

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Molybdenum Blue reagent, spray reagent, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

For use in the detection of phospholipids and related compounds.

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Azure A, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Azure A, Sigma-Aldrich®

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Sudan IV, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV, Sigma-Aldrich®

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