1077 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Disperse blue 1 is a grey to black powder. Disperse dyes are known to be insoluble in water and are applied to the substrate as suspensions or dispersions by dissolving in hydrophobic regions of the polymers making up the fiber.

Supplier: SIGMA ALDRICH MICROSCOPY

Acetaldehyde 2,4-dinitrophenylhydrazone analytical standard, for environmental analysis, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

May Grunwald's eosin-methylene blue solution, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phloxine B has been used as a component of yeast extract peptone dextrose (YEPD) to grow Schizosaccharomyces pombe.

Supplier: SIGMA ALDRICH MICROSCOPY

Erythrosin B, also called as eosin B, is a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus. Erythrosin B has been used as a dye in fluorescence lifetime imaging.

Supplier: SIGMA ALDRICH MICROSCOPY

Azobenzene 98%, 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.

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.

Supplier: SIGMA ALDRICH MICROSCOPY

May be substituted for hematoxylin in hematoxylin and eosin procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

Xylidyl blue I, (4-Hydroxy-3-[2-hydroxy-3-(2,4-dimethylphenylaminocarbonyl)-1-naphthylazobenzenesulfonic acid sodium salt; Magonsulfonate)

Supplier: SIGMA ALDRICH MICROSCOPY

Azure B (azure I) ≥89% (dye content), certified by the Biological Stain Commission, 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.

Supplier: SIGMA ALDRICH MICROSCOPY

2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol,97% (Bromo-PADAP).

Supplier: SIGMA ALDRICH MICROSCOPY

Building block for 'Anti-Bredt' strained molecules.

Supplier: SIGMA ALDRICH MICROSCOPY

Disperse Blue 134, for microscopy (1,4-Bis(isopropylamino)anthraquinone; Solvent Blue 36).

Supplier: SIGMA ALDRICH MICROSCOPY

trans-4-Stilbenemethanol

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.

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.

Supplier: SIGMA ALDRICH MICROSCOPY

Acid Blue 129, Dye content 25 % (Atanyl Blue PRL)

Supplier: SIGMA ALDRICH MICROSCOPY

Gallocyanine, Dye content 90 % (7-Dimethylamino-4-hydroxy-3-oxo-phenoxazine-1-carboxylic acid)

Supplier: SIGMA ALDRICH MICROSCOPY

When mixed with a 4% sodium nitrite solution, a freshly hexazotized pararosaniline solution is produced. May be used in a variety of cytochemistry procedures, including Sigma Procedures 181B and 181C.

Supplier: SIGMA ALDRICH MICROSCOPY

Azure A, 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.

Supplier: SIGMA ALDRICH MICROSCOPY

Brilliant cresyl blue ALD has been used for the staining of reticulocytes.

Supplier: SIGMA ALDRICH MICROSCOPY

Folin & Ciocalteu's phenol reagent is most commonly used in the Lowry method for determining protein concentration. It has also been used for the quantification of total phenolics. In this method, protein is pretreated with copper(II) in a modified biuret reagent (alkaline copper solution
stabilized with sodium potassium tartrate). Addition of the phenol reagent generates chromogens that give increasing absorbance between 550-750nm. Normally, absorbance at the peak (750 nm) or shoulder (660 nm) are used to quantitate protein concentrations between 1 - 100 mg/ml while absorbance at 550 nm is used to quantitate higher protein concentrations.

Supplier: SIGMA ALDRICH MICROSCOPY

Bis(cyclohexanone)oxaldihydrazone (Cuprizone) has been used in mice to study the effect of NG2 (neural/glial antigen 2) proteoglycan on toxic-induced demyelination. It has been used to induce demyelination in mice. It has been used to study cuprizone-induced demyelination and remyelination in the corpus callosum of mice.

Supplier: SIGMA ALDRICH MICROSCOPY

N,N-Dimethylindoaniline, Dye content 97% (Phenol Blue).

Supplier: SIGMA ALDRICH MICROSCOPY

Bromoxylenol blue, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Bromophenol Blue–Xylene Cyanol Dye solution has been used in the formamide loading buffer for the size purification of ligated RNA from polyacrylamide gel.

Supplier: SIGMA ALDRICH MICROSCOPY

Azophloxine has been used as a dye in Von Kossa staining and nonlinear optical studies. It is also used in photocatalytic tests.